日本三井物产开始为西德英托空间公司就参加1988年10月进行的蛋白质晶体生长实验征集用户。这次实验是利用中国“长征”号火箭发射的返回式卫星上的空余空间,搭载西德英托空间公司独自研制的新型实验装置。该装置在轨道上逗留5～8天,进行晶体生长实验。每l实验的费用约为1000万日元。申请日期截止到1987年11月末,三井物产征求 Mitsui & Co. Japan began collecting users for West Rhino Space Company’s participation in the experimental crystal growth of protein in October 1988. The experiment is to utilize the free space on the return satellites launched by the “Long March” rocket of China and carry the new experimental device independently developed by West German Space Company. The device in the track to stay 5 to 8 days for crystal growth experiments. The cost per experiment is about 10 million yen. Application deadline By the end of November 1987, Mitsui Property sought