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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中
工程材料問答
May 30th 2013, 17:17

1.試區別下列符號(寫出其所代表硬度之中文名稱)
HV、HRF ,BHN , HRB ,HRC , HB ,HS ,HRA ,HRH

2.影響金屬經歷大小之因素有那些

3.金屬的結晶格子可劃分為哪幾種單位晶胞?

4.潛變之意義何在?潛變試驗目的為何?

感謝各位大大幫我解上面4題 謝謝!

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