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硬度,弹性模量,耐磨的关系 |
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点评
网上一查,好像有点深的样子。望楼主解决问题之后,能科普一下...
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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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