高速磁悬浮技术

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时速650公里!全球最快
中国基金报· 2025-06-19 04:57
近日,湖北东湖实验室高速磁悬浮电磁推进技术创新中心开展的一次磁悬浮实验中,科研人员用 时7秒,成功在1000米距离内将1.1吨重的试验车加速至 650公里/小时, 测试速度 打破了同类 型平台全球纪录, 成为 全球最快的磁悬 浮试验速度。 高速磁悬浮技术在超高速电磁撬、高速磁悬浮轨道交通、低空经济、航天电磁发射等领域具备应 用前景,我国已在上海、北京、湖南长沙运营了商业磁悬浮线路。 来源: 《人民日报》(2025年06月19日 第07版) 该中心主任李卫超介绍,测试采用短距助推形式,定位精度最高可达4毫米。依托电磁助推和精 准的测速定位,测试车在650公里/小时的运行速度下,也能在220米内"刹停"。测试线技术已在 科研装置上推广应用,未来将继续提速,向着时速800公里的目标迈进。 ...
影响市场重大事件:国家外汇局数据,5月外资增持境内股票较上月进一步增加
Mei Ri Jing Ji Xin Wen· 2025-06-17 23:01
Group 1 - In May, foreign investment in domestic stocks increased further compared to the previous month, with a net inflow of $33 billion in cross-border funds from non-bank sectors [1] - The overall balance of foreign exchange supply and demand remained stable, with a surplus in bank foreign exchange settlement and sales in May [1] - The current economic situation in China is stable and progressing, providing strong support for the healthy operation of the foreign exchange market [1] Group 2 - The State-owned Assets Supervision and Administration Commission (SASAC) emphasizes the need for state-owned enterprise funds to invest early, small, and solidly in new industries and technologies [2] - There is a focus on planning and aligning with national key industry development strategies, as well as increasing investment in angel, venture, and equity investments [2] Group 3 - A Bank of America survey indicates that the net underweight position in the US dollar reached 31%, the highest in 20 years, with 47% of investors citing trade friction as the biggest tail risk [3] - Investors are reallocating funds from other regions to emerging markets, with an overweight position of 28%, the highest since August 2023 [3] Group 4 - The World Gold Council reports that over 95% of surveyed central banks expect to continue increasing their gold reserves in the next 12 months, with nearly 43% planning to add to their holdings [4] - The survey included responses from a record 73 central banks, indicating a strong ongoing interest in gold despite rising prices [4] Group 5 - China's magnetic levitation technology has achieved a breakthrough, successfully accelerating a 1.1-ton test vehicle to 650 km/h over a distance of 1,000 meters [5] - This technology is expected to support the development and testing of high-speed trains in China [5] Group 6 - China's new generation crewed spacecraft "Dream Boat" successfully completed a zero-height escape flight test, marking a significant breakthrough in the country's lunar exploration program [6] Group 7 - The first maritime financial service platform in China has been launched, which converts maritime information into credit certificates for financing purposes [7] - This platform aims to address challenges faced by shipping companies in securing financing by providing real-time data on ship collateral [7] Group 8 - China's cross-border e-commerce export scale has surpassed 2 trillion yuan, with a year-on-year growth of 16.9%, accounting for 8.5% of total goods exports [8] - The main export destinations include the United States, the United Kingdom, and Germany, while the primary sources of imports are the United States, Japan, and Germany [8] Group 9 - SASAC highlights the importance of consolidating foundational resources and promoting the application of artificial intelligence and other technologies in state-owned enterprises [9] - The focus is on creating high-value application scenarios and enhancing collaboration among various ownership enterprises for technological and industrial innovation [9] Group 10 - China's investment in Central Asian countries has exceeded $30 billion, focusing on green development and digital economy projects [10] - China is a major source of investment in Central Asia and has signed contracts worth $120.1 billion in the engineering sector, with a completed turnover of $75.6 billion [10]