CCTV News:On January 21, the State Council held a press conference on business work and operation in 2019. When answering a reporter’s question, Vice Minister of Commerce Qian Keming said that the holiday market supply is ready and will provide a strong guarantee for the people to celebrate the Spring Festival. Commercial departments at all levels actively take measures to increase market supply, optimize holiday services, plan and organize activities to promote consumption during holidays, and make full preparations. Mainly in the following four aspects:

　　There are plenty of holiday goods.In order to effectively increase the supply of meat in the market, the Ministry of Commerce, together with relevant departments, has formulated a plan for the delivery of two sections of reserve meat, and instructed local authorities to strengthen the delivery of reserve meat. Since mid-December last year, 177,000 tons of frozen pork have been put into the central reserve, 2,000 tons of frozen beef and mutton have been put into Qinghai, Ningxia, Tibet, Xinjiang, Gansu and other ethnic minority areas, and more than 120,000 tons of pork have been put into the local reserve. Strengthen the organization of goods supply and the connection between production and marketing, and improve the ability of ensuring supply in the holiday market. Beijing organized 46 large-scale agricultural products wholesale markets and supermarket chains to carry out joint action to ensure the supply of vegetables during the holiday, and the supply of vegetables increased by about 10% during the holiday. Hebei, Jiangxi, Guizhou, Qingdao and other regions organize large-scale circulation enterprises to increase the variety and quantity of holiday stocking through the forms of "factory-yard linkage", "agricultural supermarket docking" and "wholesale-retail docking". Commercial and trade circulation enterprises actively broaden the sources of goods and increase the stocking quantity. The stocking quantity of daily necessities is more than 20% higher than usual. Meat and vegetables can meet the consumption of 5 to 7 days, and grain and oil can meet the consumption of about 20 days.

　　The service supply is abundant.Encourage and guide catering enterprises to operate normally during the Spring Festival. Guangzhou held the activity of "Spring Festival food is not closed", and 2,300 stores of 192 chain catering enterprises participated in the activity; Hotels in Hangzhou booked more than 20,000 tables for New Year’s Eve dinner, an increase of 17.7%. A number of measures have been introduced in various places to ensure the supply of holiday services. Beijing has launched a campaign to ensure the supply of domestic services, and organized domestic workers to stay in service posts by means of "returning home at the wrong peak". It is estimated that 50,000 domestic workers will stay in Beijing during the Spring Festival. Shanghai has identified 117 domestic enterprises as the backbone enterprises for domestic security during the Spring Festival, and guided more domestic workers to stay in Shanghai.

　　The promotion activities are wonderful.Focusing on new growth points such as night consumption, holiday consumption, green consumption and brand consumption, we will organize a variety of consumption promotion activities to meet the personalized and diversified consumption needs of the people. For example, Hebei held "Happy Hebei Happy Shopping", and Sichuan held "Spring Shopping Month" and "Sichuan Goods New Year Happy New Year" and other activities. Eleven experimental pedestrian streets will also play an important role during the Spring Festival, and organize various promotional activities with rich contents.

　　The price is generally stable.Before the holiday, the market of daily necessities was generally stable, and the prices of pork and vegetables rose slightly due to factors such as increased consumer demand and increased rain and snow. According to monitoring, the average wholesale prices of pork, vegetables and fruits in 100 large wholesale markets nationwide last week increased by 2.2%, 2.4% and 2.6% respectively compared with the previous week, and the increase range was within the normal range. The prices of grain, edible oil, beef and mutton were basically the same as those of the previous week, while the prices of chicken and eggs dropped by 1.5% and 3.6% respectively.

　　China Meteorological Network News At 10: 00 on June 11, the Central Meteorological Observatory continued to issue a blue rainstorm warning. It is estimated that there will be heavy rainstorms in southern Jiangnan, central, eastern and southern South China, southeastern and western Yunnan, and Taiwan Province from 14: 00 on the 11th to 14: 00 on the 12th, including heavy rainstorms (100-150 mm) in parts of southwestern Jiangxi, central and southern Fujian, southeastern Guangxi, central and western Guangdong, and southern Taiwan Province. These local areas are accompanied by strong convective weather such as short-term thunderstorms and strong winds.

　　The meteorological department suggested that the government and relevant departments should do a good job in emergency prevention of rainstorm according to their duties, and all departments should strengthen information communication and emergency linkage; Do a good job in the drainage of cities and farmland, and pay attention to prevent possible disasters such as flash floods, landslides and mudslides; Cut off the outdoor power supply in dangerous areas and suspend outdoor work; The public should take measures to deal with the rainstorm and make reasonable arrangements for travel, production and life.　　

(Source: Editor of Central Meteorological Observatory: Li Wenqin)

　　

　　

　　　　

　　[Meteorological Science Popularization]

　　Rainstorm and its prevention and response

　　Heavy rain refers to rain with high precipitation intensity, which is often formed in cumulonimbus clouds. According to meteorological regulations, rain with an hourly rainfall of more than 16 mm, or a continuous rainfall of more than 30 mm for 12 hours and a 24-hour rainfall of 50 mm or more is called "rainstorm". According to its precipitation intensity, it is divided into three grades, that is, the 24-hour precipitation is 50-99.9 mm, which is called "rainstorm", the 100-249.9 mm is called "heavy rainstorm" and the 250 mm is called "extraordinary rainstorm". However, due to the different characteristics of precipitation and topography, the standards of rainstorm and flood in different places are also different. In business practice, rainstorm can be divided into local rainstorm, regional rainstorm, large-scale rainstorm and extra-large rainstorm according to the scope of occurrence and influence.

　　The local rainstorm lasts only a few hours or dozens of hours, and generally affects tens to thousands of square kilometers, causing less harm. However, when the rainfall intensity is extremely high, it can also cause serious casualties and property losses.

　　Regional rainstorm generally lasts for 3 ~ 7 days, and the influence range can reach 100 ~ 200,000 square kilometers or more. The disaster situation is average, but sometimes it may cause serious regional rainstorm and flood disaster due to the extremely strong rainfall intensity.

　　Extra-large-scale rainstorm lasts the longest, and it is generally a combination of continuous rainstorms in many areas. The rainfall can last intermittently for about 1 ~ 3 months, and the rain belt can be maintained for a long time. Torrential rain is a kind of disastrous weather, which often causes floods and serious soil erosion, leading to major economic losses such as engineering accidents, dike breaches and crop flooding. Especially for some low-lying and closed terrain areas, rainwater can not be quickly vented, resulting in farmland water accumulation and soil moisture over-saturation, which will cause more disasters.

　　How does the city "Rain Island" avoid waterlogging?

　　　　At present, China is at the peak of urbanization, population and wealth are constantly concentrated in cities, and the area of cities is getting bigger and bigger. Urban waterlogging not only brings inconvenience to people’s travel and life, but also may cause some secondary disasters. How to carry out scientific planning and design to ensure people’s travel and property safety?

　　Urban "Rain Island Effect" and "Turbid Island Effect"

　　Urban waterlogging refers to the phenomenon of waterlogging disaster in cities due to heavy precipitation or continuous precipitation exceeding urban drainage capacity. The amount of precipitation in a city depends firstly on the atmospheric circulation and secondly on the environmental conditions of the city itself.

　　Modern urban waterlogging has two characteristics: first, the universality of urban waterlogging exists in many cities in China. Secondly, the incidence of waterlogging is high in some specific places in the city, such as overpasses; With the construction of modern cities, underpasses, railway bridges and highway bridges crossing the street also occur frequently. In addition, in recent years, the phenomenon that precipitation in many cities is obviously greater than that in the surrounding suburbs has become more and more prominent.

　　High-rise buildings in cities are compared to "reinforced concrete forests", and with the increasing density of "forests", air conditioners and automobile exhaust increase the heat, forming a hot air flow over cities. The thicker the hot air flow, the more likely it is to cause precipitation. At the same time, the concentrated buildings in the city reduce the wind speed, and the weather system such as strong rain belt stays over the city longer than the empty suburbs, and the total precipitation increases, which is called the "rain island effect". The "rain island effect" mainly appears in flood season and rainstorm, and the frequency and intensity of urban rainstorm are higher than those in surrounding areas, which is easy to form flood disasters.

　　The concentration of industry, the large number of vehicles and the dense population in the city lead to the turbidity of polluted gases and dust in the air much higher than that in the surrounding areas, forming the urban "turbidity island effect". The influence of urban "turbid island effect" on rainfall is as follows: dust and other turbid substances are the most needed condensation nuclei for water vapor in clouds to change into rainfall. The more condensation nuclei there are over the city, the easier it is for water vapor to condense here and cause precipitation, thus increasing rainfall.

　　Generally speaking, the factors affecting urban waterlogging mainly include three aspects. One is rainfall, especially heavy rainfall. When the frequency and intensity of rainstorm in cities are higher than those in surrounding areas, it is easier to form flood disasters. The second is topography. It is not easy to form stagnant water in areas with relatively high terrain, but it is easy to form waterlogging in areas with relatively low terrain, which is also the reason why a large amount of stagnant water is easy to appear in overpasses and underground passages. Third, the urban drainage system is not perfect. In some cities, there are many "debts" in the drainage network, the pipes are aging and the drainage standards are relatively low. In addition, a large number of hard pavements, such as asphalt pavement and cement pavement, have poor permeability and are easy to cause water accumulation.

　　　How to effectively deal with the super-standard rainstorm

　　Unexpected events such as super-standard rainstorm will pose a great threat to urban waterlogging. Xie Yingxia, director of the Institute of Engineering Planning and Design of China Urban Planning and Design Institute, believes that combining engineering measures with non-engineering measures is an effective way to deal with the super-standard rainstorm, and it should be comprehensively considered from the aspects of economy and environment. First of all, for hard engineering measures, the standards should be appropriate and the emergency rescue system should be improved. When planning and designing, we should implement the construction contents, such as where to build reservoirs, where to divert floods, where to build pumping stations and where to build gates. Secondly, for soft non-engineering measures, it is necessary to strengthen the construction of emergency system and ensure its normal operation. In recent years, foreign countries have used ecological methods to improve the conditions of rainwater system, such as using permeable bricks to pave sidewalks, increasing permeable layers and reducing hard pavement. Storage regulation is also one of the main measures they usually take.

　　In addition, considering the environment, it is necessary to build an eco-city to meet the scientific development of the city. It is a good idea to beautify the city and store water and prevent waterlogging, such as increasing green space, reducing runoff, and using permeable bricks in sidewalks, squares and other areas. At the same time, planning and design methods that are economical, environmentally friendly and timely drainage are also needed to be strongly advocated.　　

　　So, how to carry out scientific planning and design to deal with urban waterlogging? Xie Yingxia said: First, we should update our concepts and pay attention to the problem of urban drainage; Second, it is necessary to introduce urban drainage planning and design standards as soon as possible, clarify the different drainage standards of different cities, and rationally arrange drainage facilities; Third, we should rationally choose urban construction land; Fourth, rational planning, scientific management, and targeted drainage planning; Fifth, we should take precautions against excessive rain, and reduce the loss of waterlogging by strengthening meteorological forecast and improving emergency management system; Sixth, we should gradually improve the construction standard of drainage system; Seventh, we must formulate good drainage measures. According to the local topography, the measures of flood interception, diversion and storage are studied; Eighth, we should pay attention to taking non-engineering measures, and it is strictly forbidden to occupy shed covers on both sides of the river, fill ditches and build land, and block the river bed. River ditches should be dredged in time to ensure smooth drainage.

Maserati is an Italian luxury car brand with a history of 100 years and a legendary story, which is famous for its sports and performance. Maserati’s models not only have unique design and exquisite craftsmanship, but also have strong power and excellent handling, providing drivers with extraordinary driving experience. Maserati is also constantly innovating and evolving, and has launched a number of amazing new models, showing its vision and courage for the future. Today, let’s learn about Maserati’s world and feel its charm and innovation.

Maserati’s symbol is a trident, which originated from the coat of arms of Bologna, Italy, and is also a symbol of Neptune in Roman mythology. Trident represents Maserati’s three core values: strength, elegance and challenge. Mario Maserati, one of the founders of Maserati, designed this logo in 1920, which has since become the soul and logo of Maserati brand.

Maserati’s history can be traced back to 1914, when four brothers Alfonso, Carlo, Ettore and Bindo Maserati founded the Society à Anonima Official Alfieri Maserati in Bologna, specializing in the production of racing cars and aircraft engines. They have deep enthusiasm and professional knowledge for automobile technology, and soon they have made brilliant achievements in the field of racing. In 1926, they launched the first racing car named after Maserati, and won the championship at Targa Florio. Since then, Maserati has made great achievements in various international competitions, including Indianapolis 500, Italian Grand Prix and 24 Hours of Le Mans.

Maserati not only has a long history and legendary stories, but also has the spirit of continuous innovation and evolution. Maserati creates boundless boundaries with fearlessness, creates the future with innovation, and goes to the world with passion, bringing more surprises and choices to drivers. In recent years, Maserati has launched a number of amazing new models, showing its vision and courage for the future.

In 2020, Maserati launched a brand-new super sports car MC20, which is the first super sports car since Maserati launched MC12 in 2010 and the first mid-engine sports car since Maserati launched Bora in 1968. The MC20 adopts a brand-new Nettuno engine, which is the first time Maserati has used a self-developed engine since 1937. It has 630 horsepower and a maximum torque of 730 Nm, and can accelerate from 0 to 100 km/h in 2.9 seconds, with a top speed of 325 km/h. The MC20 also adopts lightweight carbon fiber body and aerodynamic design, as well as advanced electronic system and luxurious interior, providing drivers with the ultimate performance and comfort.

In 2021, Maserati launched a brand-new SUV model Grecale, which is the second SUV model after the launch of Levante in 2016, and it is also an important part of Maserati’s brand rejuvenation plan. Grecale is named after the strong wind blowing from the northeast Mediterranean, which symbolizes Maserati’s control of wind speed, direction and wind power. Grecale adopts a brand-new platform and powertrain, including hybrid and pure electric versions, with strong power and flexible handling, as well as elegant and sporty appearance and interior, providing drivers with diversified and personalized choices.

In 2022, Maserati will launch a brand-new convertible sports car MC20 Cielo, which is Maserati’s first convertible supercar and an extension of MC20 series. Cielo means "the sky", which means Maserati’s pursuit of freedom, infinity and challenge. The MC20 Cielo adopts retractable hardtop design, which can be opened and closed in 17 seconds without affecting the performance and space of the vehicle. The MC20 Cielo retains the powerful power and lightweight structure of the MC20 sports car, but also increases the fun and enjoyment brought by the convertible.

Maserati not only provides a variety of excellent models, but also provides a personalized customization project Fuoriserie, so that every customer can create their own unique Maserati according to their own preferences and needs. Fuoriserie means "customized car", which is Maserati’s respect and tribute to customers, and also Maserati’s confidence and challenge to itself. Fuoriserie customization project provides three themes: Corse, Unica and Futura, which respectively represent racing, uniqueness and future, allowing customers to choose and combine in appearance, interior, accessories and details to create their own style and attitude.

The theme of Corse is inspired by Maserati’s racing tradition, which provides elements of sports and passion, such as carbon fiber, aluminum alloy and racing painting, so that customers can experience Maserati’s speed and handling.

Unica theme is inspired by Maserati’s elegance and fashion, providing unique and exquisite elements, such as precious leather, wood, jewelry, etc., so that customers can experience Maserati’s taste and comfort.

　　[Aika Auto Domestic New Car Original]

　　Recently, it was learned that the new generation of Mercedes-Benz S-Class will be put on sale on January 29th. As the flagship car of Mercedes-Benz, the change of the new generation of Mercedes-Benz S-Class is all-round, the appearance adopts the latest design language, and the overall shape is more rounded and dynamic. The interior also adopts a brand-new design, and the continuous screen design disappears. Instead, it is a 12.8-inch OLED high-definition touch control panel and a 12.3-inch full LCD instrument. In addition, the configuration upgrade is more worthy of attention. Whether it is the brand-new MBUX infotainment system, the HUD head-up display function with AR reality enhancement function, or even the front rear airbag equipped for the first time, it will lead a new round of high-tech trend.

　　The appearance adopts a new design language, and the shape is more rounded and exquisite.

　　In terms of appearance, the new generation of Mercedes-Benz S-Class adopts the latest family design language, equipped with a more rounded front net, and the internal grille is designed with three banners. The headlights on both sides are more flat and dynamic, and the eagle hook LED strip is added inside the headlights, which makes the front face more recognizable. In addition, it can be seen that the sensor is added to the front grille area of the new car, which further confirms that the new generation of Mercedes-Benz S-Class will be equipped with L3 automatic driving assistance system.

　　Viewed from the side, the new generation of Mercedes-Benz S-Class body is more slender. According to official data, its length, width and height are 5280/2109/1503(mm) and the wheelbase is 3216 mm. In addition, the new generation of Mercedes-Benz S-Class adopts a relatively straight line design and is equipped with a hidden door handle. Thanks to this design, the drag coefficient of the new generation of Mercedes-Benz S-Class is only 0.22. On the tail, the biggest highlight of the new generation Mercedes-Benz S-Class is the triangular taillights with sharper shape, and the taillights on both sides are connected by a thick chrome trim, which improves the overall feeling and exquisiteness of the tail. In addition, the new generation of Mercedes-Benz S-Class adopts a two-way exhaust layout.

　

　　The interior adopts a brand-new design, luxurious feeling and upgraded configuration, which brings many surprises.

　　In terms of interior, the change of the new generation Mercedes-Benz S-Class can be described as huge. The large-area decorative board of the center console originates from the yacht deck and runs through the whole interior space. The material is made of perforated walnut, which contrasts with the high-grade aluminum ornaments customized according to the outline of the car, making the car full of luxury texture.

　　In addition, the new generation of Mercedes-Benz S-Class has cancelled the familiar multi-screen design. The central control area is equipped with a 12.8-inch OLED high-definition touch screen, which integrates a brand-new MBUX infotainment system, and has OTA upgrade and intelligent interconnection functions. At the same time, the new generation of Mercedes-Benz S-Class is also equipped with a brand-new 12.3-inch full LCD instrument (supporting naked-eye 3D and multi-theme mode switching) and a three-spoke multi-function steering wheel, and the air conditioning outlet also adopts the latest design.

　　The new MBUX infotainment system equipped with the new generation of Mercedes-Benz S-Class is similar to the operating system of our common tablet computer, which can meet the needs of many people operating at the same time, thus realizing the different use needs of front and rear passengers. In terms of human-computer interaction, the new MBUX infotainment system can accurately and clearly feedback the driver’s instructions; In the aspect of internet entertainment, passengers in different locations can perform some train operations independently, and they can also learn different vehicle information.

　　The new generation of Mercedes-Benz S-Class is equipped with active ambient lighting, which is integrated into the function of "relaxing the mind", which can create suitable indoor ambient lighting after the driver sends out voice instructions or presses buttons, and visually help the driver refresh or relax. The active ambient light is also integrated into the driver assistance system, which makes driving easier and safer with a more enhanced visual warning function.

　　The new generation Mercedes-Benz S-Class is equipped with 4D Berlin Sound, including 30 speakers and 8 vibrators, among which the vibrators are located at the backrest of the seats, and the rhythmic intensity of each seat can be adjusted independently. In addition, the new generation of Mercedes-Benz S-Class "Heart-refreshing Air Control Function" is equipped with a powerful air filtration system, which can remove dust, pollen and odor more effectively, and with the in-vehicle air conditioning component with negative ion generator and active fragrance system, passengers can enjoy pure breathing in the car.

　　Improvement of seat comfort and intelligence

　　The new generation of Mercedes-Benz S-Class front seat backs are equipped with display screens to provide entertainment functions for rear passengers, and the front and rear display screens of new cars also support interconnection functions. In addition, the new generation of Mercedes-Benz S-class seats have been completely designed, with smoother and more three-dimensional shapes, and unique diamond rhombus and other different seat lines. The new generation of Mercedes-Benz S-Class is also equipped with the function of "seat dynamics", which can help improve the sitting posture and relieve the spine pressure of the driver and passenger by actively and finely adjusting the inclination of the seat cushion and backrest. Not only that, the function of "mind-reading and waking up" has been further upgraded. Through the "mind-reading voice assistant", you only need to say "I am very tired" and other requirements, and the related modes will be triggered automatically; At the same time, customers can freely adjust and choose the working order of each function in a single mode, and even share and recommend their own mode with other passengers.

　　In addition, after entering the car, you can also use the seat and steering wheel automatic adjustment function (ADAPT function), just input the height in the MBUX intelligent human-computer interaction system, or tell the height to the "mind-reading voice assistant". This function will calculate the optimal driving position according to the input height, and adjust the driver’s seat, steering wheel and rearview mirrors on both sides accordingly to bring the most scientific and safe riding position for the driver. The new generation of Mercedes-Benz S-Class also uses sound-absorbing foam for specific profile shells to further reduce noise and vibration interference.

　　Safety configuration highlights are mostly equipped with rear front airbags for the first time.

　　A new generation of Mercedes-Benz S-Class is equipped with a rear frontal airbag for the first time, which adopts a cylindrical tubular frame filled with compressed gas, and its deployment structure is an airfoil. When the airbag is ejected, the rear airbag quickly unfolds between the two wings, and its shape is very similar to that of a tent. However, the tubular structure with smaller volume can quickly take out and unfold the airbag with larger area, and complete it with less force, so as to avoid the secondary injury of the ejected airbag to passengers.

　　In addition, the new generation of Mercedes-Benz S-Class is also equipped with a central airbag, which is integrated into the driver’s seat backrest. In case of serious side impact, the central airbag will pop out between the driver’s seat and the co-pilot seat, reducing the risk of head contact collision. At the same time, the rear row of the new generation Mercedes-Benz S-Class is also equipped with inflatable seat belts.

　　In addition to the front airbags in the rear row, the new generation Mercedes-Benz S-Class is also equipped with a rear wheel active steering system (up to 10 degrees), an intelligent magic body control system (pre-responding to different driving situations with the help of five multi-core processors, more than 20 sensors and stereo cameras), a new generation of driver assistance components (including a 360 panoramic camera and an intelligent parking system), and a preventive side collision protection function (raising the body when a side impact is detected). At the same time, the new generation Mercedes-Benz S-Class is also equipped with HUD head-up display function integrated with AR reality enhancement function. This function not only provides common navigation information and driving information, but also adds dynamic arrow indication function, which can realize more intuitive and safe navigation information in combination with road conditions.

　　A variety of power options plug-in hybrid system has a pure battery life of about 100km.

　　In terms of conventional power, the S 500 and S 580 models of the new generation of Mercedes-Benz S-Class will be equipped with a 3.0T inline six-cylinder turbocharged engine and a 4.0T turbocharged V8 engine, both of which are matched with the EQ Boost light mixing system. The maximum power of the motor is 16kW(22 HP), and the combined maximum power of the overall power system is 320kW(435 HP) and 370kW(503 HP) respectively. The hybrid top model S 580 e is equipped with a 3.0T inline six-cylinder turbocharged engine, a motor with a maximum power of 104kW(142 HP) and a battery of 28kWh. The pure electric cruising range can reach about 97km. Of course, the Maibakh version of the new Mercedes-Benz S-Class will still be equipped with the V12 engine.

　　Editor’s comment:As the flagship car of Mercedes-Benz, every change of Mercedes-Benz S-Class can be regarded as a signal to lead the upgrade and evolution of Mercedes-Benz’s cars. From this point of view, the upgrade and change of the new generation of Mercedes-Benz S-Class can be said to be all-round, and the more rounded appearance brings us another visual experience. Cancelling the continuous screen design may be the main direction of Mercedes-Benz’s future interior design. Of course, as a flagship car, the configuration upgrade of the new generation of Mercedes-Benz S-Class deserves more attention. The brand-new MBUX infotainment system is more intelligent and powerful, and the smarter and more comfortable seats further enhance the driving comfort of the new generation of Mercedes-Benz S-Class. The upgrade of safety configuration is extremely careful. Whether it is the HUD head-up display function integrated with AR reality enhancement function or the rear front airbag added for the first time, Mercedes-Benz attaches importance to the safety of drivers and passengers. In terms of power, the new generation of Mercedes-Benz S-class plug-in hybrid system is very attractive, which is likely to become another growth point of its sales.

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