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世界上许多国家都在高效率、快节奏地开发航天器。人类继成功地发射了人造卫星、航天飞机之后,又开始执行了一项新的计划——多国参加的空间站计划,本世纪末、下世纪初这一计划将付诸实施。日本也
Many countries in the world are developing spacecraft efficiently and fast-paced. Following the successful launching of man-made satellites and space shuttles, mankind began to implement a new plan - a multi-nation space station plan to be implemented by the end of this century and the beginning of the next century. Japan also