工程材料問答:－情侶台北一日遊2016拜託大大幫忙規劃台北一日遊行程台北一日遊行程規劃台北捷運一日遊推薦台北一日遊可以怎麼安排

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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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