9146| 6
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45钢的比热容、弹性模量、泊松比等随温度变化的数值哪能查到? |
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Archiver|手机版|小黑屋|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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