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作为日本宇宙开发事业团空间站计划的一部分，最近在筑波宇宙中心建成一座无重力环境试验大楼。这座无重力环境试验楼，能在无重力环境下，完成空间站“ＪＥＭ”（日本宇宙实验模型）的设计鉴定试验。用于ＪＥＭ维护、机架转换的设计程序业已完成，它完全能够胜任航天员的基础?
As part of the NASDA Space Station project, a gravity-free environment test building was recently built at the Tsukuba Cosmic Center. This gravity-free environment test building can accomplish the design qualification test of space station “JEM” (Japan Universe Experiment Model) without gravity. The design process for JEM maintenance, rack conversion has been completed and is it fully capable of astronauts?