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剛度,強(qiáng)度,硬度,韌性有什么區(qū)別?機(jī)械工程師必須熟知的13大材料性能 |
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點(diǎn)評
你瞎啊?沒完了,狗幣。不愿意理你了,還跑之前的帖子下面回復(fù)。隨你吧,想跟著爹就跟著爹跑,別亂咬就行。
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