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霍斯敦——约翰逊空间中心正在决定用二、三十亿美元,在八十年代后期,建造美国的永久性载人空间站,以开拓人在轨道上大规模活动的能力,最后扩展到与地球同步高度上,跟苏联在载人长期飞行
The Hawthorne-Johnson Space Center is deciding to build a permanent manned space station in the United States with $ 230 million in the late 1980s to expand human capacity to orbit large-scale activities and eventually expand to Earth Synchronous altitude, with the Soviet long-term flight in manned