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本文介绍了我国真空获得产品的现状,分析了国外真空获得产品的发展水平及目前我国真空获得产品存在的问题,并指出了今后发展方向
This paper introduces the current status of vacuum products in China, analyzes the development level of foreign vacuum products and the problems existing in vacuum products at present in our country, and points out the future development direction