12472| 36
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手里的专利,心里的愁 |
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点评
嗯 发明专利周期太长,我没资本跟它拖
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小黑屋|手机版|Archiver|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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