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27385| 42
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[材料与接触] 在哪可以查到Q235和Q345钢的具体力学性能参数? |
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50体能
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回复 #5 skylarkcrane 的帖子
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回复 #9 savagebob 的帖子
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回复 #12 无水1324 的帖子
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