8713| 21
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什么構型和配置能滿足0.005°的旋轉精度 |
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點評
可以的,想想機械手表吧。
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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