1972| 2
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變位系數(shù)計(jì)算過程 |
點(diǎn)評(píng)
好像在ZC蝸桿的介紹中看到過這個(gè)名詞
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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