6092| 4
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過渡配合的孔,軸公差帶一定互相交疊,,這句話對嗎,? |
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,,浙公網安備33038202004372號 )
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