4458| 8
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雙頭螺柱聯結比螺栓防松效果好 |
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點評
預緊力小的情況確實增加了一個松動點,預緊力達到一定值,雙頭螺栓的防松作用不給它松動的機會
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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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