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2013-05-23 12:21
求翻译：We collected information on invention patents from the open SIPO (State Intellectual Property Office of China) database web site. The Chinese invention patent database contains 1,610,798 invention patents since 1985, based on a data search on是什么意思？ 待解决
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We collected information on invention patents from the open SIPO (State Intellectual Property Office of China) database web site. The Chinese invention patent database contains 1,610,798 invention patents since 1985, based on a data search on
问题补充： |
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