2673| 3
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浮动齿轮和齿条,可以不以用于动力结合和分离的场合 |
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点评
没有看懂,能否画个草图交流下
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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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