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社友推荐的德国机械设计人员人手一本的工具书,找到了电子版(中文版),推荐给大家 |
点评
你给泄密了^_^
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Archiver|手机版|小黑屋|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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