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        新聞資訊
        600km/h high-speed maglev train rolls off production line in China
        2019-5-24
        來源:未知
        點擊數: 2536          作者:未知
        • On May 23rd, the test prototype of 600km/h high-speed maglev train rolls off production line in CRRC, which witnesses the great breakthroughs China has made in high-speed maglev technology. It can fill in the speed gap between air transport and high-speed train, and also has significant technological and economic influence on the further improvement of high-speed passenger transport network.

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        色综合色综合色综合色欲,欧美俄罗斯XXXX性视频,五十路熟妇乱子伦电影日本