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联合国和平利用外层空间委员会科技小组委员会第50届会议于2013年2月11—22日在维也纳联合国总部举行。来自74个国家、地区和相关国际组织的官员和专家500多人出席了本次会议。中国政
The 50th Session of the Scientific and Technical Subcommittee of the United Nations Committee on the Peaceful Uses of Outer Space was held at United Nations Headquarters in Vienna from 11 to 22 February 2013. More than 500 officials and experts from 74 countries, regions and relevant international organizations attended the meeting. Chinese government