3625| 2
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斷面收縮、斷后伸長(zhǎng)率越打越好嗎? |
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點(diǎn)評(píng)
抗拉強(qiáng)度越高,表示延展性越好??
因?yàn)檠诱剐阅芨美病?nbsp;
從力學(xué)性能上來(lái)說(shuō)當(dāng)然是越大越好。
為什么這么說(shuō)呢?
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