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Ｊ－１火箭首飞成功，有效载荷沉入大海日本的小型全固体运载火箭Ｊ－１于今年２月１２日从种子岛航天中心的大峡发射场进行了它的首次发射，成功地把高超音速飞行试验件（ＨＹＦＬＥＸ）送入预定的亚轨道，但遗憾的是该试验件未及回收就因系缆断裂而沉入海底。Ｊ－１是一...
The first successful launch of the J-1 rocket and the payload submerged into the sea Japan’s small all-solid carrier J-1 launched its first launch on 12 February this year at the Ogasaka launch site of the Tanegashima Space Center and successfully launched the hypersonic Flight test piece (HYFLEX) into the scheduled sub-orbit, but unfortunately the test piece failed to recover because of cable breakage and sink into the sea floor. J-1 is a ...