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哈萨克斯坦的拜科努尔航天中心，一枚俄罗斯“联盟” 号运载火箭携带着试验型可回收火箭助推器腾空而起。火箭助推器在进入预定轨道，绕地球飞行5圈后，返回了稠密大气层。这时，助推器忽然释放出一层薄膜，薄膜迅速充气形成一个气囊，将助推器包得密不透风。在顶住了与大气摩
At the Baikonur Space Center in Kazakhstan, a Russian “Alliance” carrier rocket landed with a pilot-type recoverable rocket booster. The rocket booster returned to the dense atmosphere after it entered orbit five times around Earth. At this time, the booster suddenly released a layer of film, the film quickly inflated to form a balloon, the booster bag is tightly airtight. In the withstand of the friction with the atmosphere