3413| 5
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求助回轉(zhuǎn)支承外齒參數(shù)含義 |
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點(diǎn)評
可以嚙合,相當(dāng)于標(biāo)準(zhǔn)齒輪變位系數(shù)為0啊,分度圓上的壓力角還是20度
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