10217| 14
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求助:直齒漸開線齒輪傳動(dòng),,兩個(gè)齒輪中心距誤差范圍是多少 |
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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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