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各種軸承的配合制 |
點評
關節軸承是滑動軸承,你讓樓主看滾動軸承...
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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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