CCTV News: In the spring, China is developing vigorously in all fields. The enterprising spring confidence bloomed and the surging spring tide in China played the "Spring Song" of economic development.

China is developing a 4m and 5m reusable rocket

The reporter learned from the Aerospace Science and Technology Group that in order to meet the needs of the commercial aerospace market, China is working hard to develop 4-meter and 5-meter reusable rockets, which are planned to fly for the first time in 2025 and 2026 respectively.

At present, China has completed the vertical takeoff and landing hover test of reusable rockets, breaking through the key technology of reusable rockets, and the development of 4-meter and 5-meter reusable rockets is accelerating.

Compared with traditional disposable rockets, reusable rockets add four categories of key technologies. First, the rocket should be accurate when returning; Second, the rocket should be firmly connected when landing and recovering; Third, how to make the rocket work well in order to meet the requirements of repeated use; Fourth, when the rocket needs local maintenance, how can it be repaired quickly.

According to experts, reusable rockets are one of the important development directions of space exploration in the future, which are characterized by low cost, high efficiency, high technical difficulty and more environmental protection. To achieve this goal, many technical difficulties need to be overcome. At present, relevant key technologies are being tackled one by one, and the overall development is progressing smoothly.

The completion of the construction of "Haiji II" set new Asian records

The first deepwater jacket in Asia independently designed and built by China, "Haiji No. 2", was loaded in Zhuhai, Guangdong Province on March 12 and shipped to the Pearl River Mouth Basin. It is planned to be installed offshore at the end of March. The "Haiji No. 2" project has broken many Asian records in terms of structure height, weight, operating depth, construction speed, etc., marking that China's independent design and construction capacity of deepwater super large jacket platforms has reached the world's advanced level.

Fixed jacket platform is the key equipment for offshore oil and gas development, which is composed of underwater jacket, pile legs and production modules above water. As the "foundation", jacket supports the stability and safety of the entire offshore oil and gas platform. The total height of "Haiji No. 2" jacket is 338.5 meters, the total weight is 37000 tons, and the steel consumption is close to the "Bird's Nest" National Stadium. Because of frequent typhoons and extremely strong wind waves and internal wave currents in the sea area, the jacket is designed according to the severe sea conditions once in a century.

With the continuous development of marine oil and gas resources, the deep-water area more than 200 meters has become an important battlefield for China's marine oil and gas development. With the completion of deepwater jacket platforms such as "Haiji No. 2", the jacket platform development model is playing an increasingly important role in the development of deepwater oil and gas resources in China.

Yilong 2H UAV completed the first flight of artificial precipitation enhancement

The reporter learned from Aviation Industry Group that China's self-developed pterosaur - 2H meteorological UAV successfully carried out the first artificial rain enhancement flight in western Guizhou Province.

This time, the pterosaur 2H meteorological UAV flew for nearly 5 hours in total, and the operation affected areas covered Bijie, Liupanshui, Anshun and other areas in Guizhou Province. This is also the first time that this type of UAV has implemented artificial precipitation in Guizhou Province.

At present, it is a critical period for spring plowing, and the demand for agricultural drought resistance and reservoir water storage is increasing. In the future, the pterosaur 2H meteorological UAV will carry out regular operations in Guizhou, focusing on key areas of grain production, ecological restoration guarantee areas, key river basins and other key areas, which can effectively reduce the adverse effects of drought and disastrous weather and create favorable conditions for agricultural production in spring. At the same time, the ability of forest fire prevention and disaster reduction will be improved by carrying out rain enhancement operations in key areas such as ecological security areas.

The space seed "Fengdu Cheqian" was planted in the wild for the first time

On March 12, more than 3000 rare plants that were successfully artificially bred were transplanted into the wild in Yichang, Hubei Province. Among them, the seeds of Fengdu Cheqian, a national second-class key protected wild plant, went into space, which was its first return to the wild.

On an island in the middle of the river in Xiling Gorge, the Three Gorges Reservoir area, nearly 100 volunteers worked together to dig holes, support seedlings, cultivate soil, and water under the guidance of scientific researchers, and planted more than 3000 rare plants that had been successfully artificially bred by the Yangtze River Biodiversity Research Center on the bank slope protection, successfully completing field transplantation.

It is reported that Cheqian in Fengdu is an endangered plant endemic to the Three Gorges Reservoir area, with extremely limited distribution. This time, in addition to ordinary plants, some seeds went into space with the Shenzhou 13 manned spacecraft. After space breeding and artificial breeding, researchers also returned these "naturally selected seeds" to the field and carried out comparative tests.

Tens of thousands of acres of sheep's hooves are in full bloom and ecological beauty promotes income increase

Spring returns and flowers bloom. In recent days, nearly 20000 mu of white flowered sheep's hooves, which are naturally grown in Simao District, Pu'er City, Yunnan Province, are blooming, and the fragrance of flowers is overflowing, attracting tourists from all over the world.

From March to April every year, the white flowered sheep's hoof beetles on the Paozhang Mountain in Simao District bloom as scheduled, one after another, in clusters, in pieces, looking up at the snow white everywhere. When the spring wind blows, the trembling flowers and swaying pistils are greeted by a thick smell of spring.

The white flowered sheep's hoof beetle, also known as the old white flower, likes warm and humid climate. In addition to being used as an ornamental, it can also be made into a delicious meal in spring. Its petals and buds can be used to cook soup or stir fry vegetables. Different ingredients can be matched according to different tastes to maximize its delicacy.

In recent years, with the ecological environment getting better and better, the 10000 mu flower forest has not only beautified the hillside, but also opened up a new way for the villagers to increase their income. The local government has held a series of activities such as an eco-tourism festival to attract more people to come to clock in and "taste" fresh food. Ecological flowers have also become "happiness flowers" for villagers to increase income and become rich.

Agricultural planting, scientific and technological management, vegetable seedlings, busy time

At present, it is a good time to raise seedlings. In Jincheng, Shanxi Province, various places seize the seasons, carry out seedling raising work in full swing, and prepare for cultivation in spring.

In Gaoping, an agricultural science and technology park in Jincheng City, Shanxi Province, staff are busy cultivating new vegetable seedlings.

In order to cultivate good seedlings, the irrigation system in the park adopts closed circuit circulation of water fertilizer integrated machine, equipped with advanced equipment such as automatic temperature control system, tidal full-automatic seedbed, sprinkler, etc., and realizes digital intelligence by using Internet of Things big data and other technologies. The staff can accurately apply fertilizer, regulate temperature and monitor according to the growth needs of melon, fruit and vegetable seedlings, so as to improve the quality and efficiency of seedlings.

Through the business model of "order+domestic demand", the park relies on the advanced seedbed management system to promote the integrated development of technical services and intensive seedling breeding, laying a solid foundation for vegetable planting and high-yield and income increase in spring.

Enjoying flowers for outings was just when the search volume of related tourism products increased significantly

Recently, the popularity of flower tours has soared all over the country. On a tourism platform, the search volume of "flower appreciation" has increased by 330% month on month in the past week, more than twice the year-on-year growth, and the daily average booking volume of tickets for flower appreciation scenic spots has increased by nearly 50% year on year. Among them, Nanjing, Wuxi, Jiangsu, Wuhan, Hubei, and Anshun, Guizhou have become the most popular flower appreciation destinations for tourists.

A reporter searched the home page of the official website of a tourism platform and found that many tourism products were labeled with "flower appreciation for outings" and "flower appreciation privileges". Whether it is a short one-day tour or a long line flower appreciation tour, the sales volume is very considerable.

The popularity of flower appreciation also led to self driving tours. According to data from car rental agencies, the number of car rental orders in March and April 2024 increased by nearly 50% year on year, with an average rental period of 4 days and an average price of 750 yuan. The proportion of self driving tourists who are "post-90s", "post-80s" and "post-00s" also reaches 10%.

The first issue of RMB government bonds will be issued in Hong Kong in 2024

On March 13, the Ministry of Finance issued the first issue of RMB treasury bonds in 2024 in Hong Kong Special Administrative Region. The reporter learned from the Ministry of Finance that the scale of this issue was 12 billion yuan, including 3 billion yuan for two-year term, 3 billion yuan for three-year term, 3 billion yuan for five-year term and 3 billion yuan for 10-year term.

In 2024, the Ministry of Finance will issue RMB government bonds in Hong Kong for the 16th consecutive year, with the total amount of issuance in Hong Kong exceeding 300 billion yuan. The relevant person in charge of the Ministry of Finance said that this issuance was earlier than previous years, and the Ministry of Finance would continue to maintain the regular issuance of RMB government bonds in Hong Kong, so as to continue to consolidate and enhance Hong Kong's status as an international financial center.