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× Space activities
作者:Behrens, Carl E.
发布日期:2009
关键词:Space activities;Space stations;...
发布机构:Library of Congress. Congressional Research Service.
作者:Morgan, Daniel
发布日期:2008
关键词:Space activities;Artificial satellites;...
发布机构:Library of Congress. Congressional Research Service.
作者:Smith, Marcia S.
发布日期:2003
关键词:Space activities;Space programs - U.S.
发布机构:Library of Congress. Congressional Research Service.
4 Space Stations [科技报告]
作者:Smith, Marcia S.
发布日期:2003
关键词:Space activities;Space stations;...
发布机构:Library of Congress. Congressional Research Service.
作者:Stine, Deborah D.
发布日期:2009
关键词:Science policy;Research and development;...
发布机构:Library of Congress. Congressional Research Service.
作者:Smith, Marcia S.
发布日期:2004
关键词:Space activities;Space exploration
发布机构:Library of Congress. Congressional Research Service.