3728| 6
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有做过曲轴设计的大师么 |
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点评
这玩意没做过,我接触过的有空压机的曲轴
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小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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