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美国、欧洲、加拿大和日本四国于1988年9月29日签署了今后30年有关空间站计划政府间的协定(IGA)。根据该协定,预定1996年结束空间站的安装工作,1997年11月开始启用。协定的主要内容如下: ·空间站使用权——美国具有使用本国舱的97％和欧洲舱日本舱的46％的权利。欧洲和日本有各自舱的51％使用权,加拿大可有各种舱的3％使用权。各舱由本国负责发射,各国在开始支付运用经费时起就获
On September 29, 1988, the United States, Europe, Canada and Japan signed the Intergovernmental Agreement (IGA) on the space station plan for the next 30 years. According to the agreement, the installation of the space station is scheduled to end in 1996 and it will be commissioned in November 1997. The main contents of the agreement are as follows: · Right to use the space station - The United States has the right to use 97% of the national class and 46% of the European class. Europe and Japan have 51% usage rights in their respective cabins and Canada can have 3% usage rights in various cabins. Each cabin is responsible for launching by its own country, and each country is granted a