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日本空间与宇航研究所计划于1988年9月从气球上向高层大气发射航天飞机——架长度仅为2米的模型机。这架模型机由该所的一个以长侣诚(Makoto Nagatomo)教授为首的小组研制,已作了从直升飞机上发射的低层大气试飞。预定9月18日进行的飞行将是其首次重返大气层试验。
The Japan Institute of Space and Astronautics plans to launch a shuttle from the balloon to the upper atmosphere in September 1988 - a model aircraft with a frame length of only 2 meters. Developed by a team of the institute headed by Professor Makoto Nagatomo, the prototype aircraft has undergone a low-level atmospheric test flight from a helicopter. The scheduled flight to September 18 will be the first to return to the atmosphere.