12063| 12
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同步帶從動輪幾種軸承支撐形式設計的區(qū)別? |
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點評
他應該指軸承安裝方式
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點評
+1
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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