7883| 16
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齒輪齒條雙齒輪消隙原理 |
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點評
你把它設計出來就可以申請專利了,搞不好還能混個諾貝爾獎玩玩!
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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