13176| 14
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secoman一款专业的阀块设计软件 |
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点评
阀块加上压力以后的受力分析,内部流体液阻之类的
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小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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