在连铸横断面中心部位出现的碳、磷、硫等元素的浓度偏差,称为()。
参考答案:中心偏析
-If only there were no examinations!
- We all need more rest. [ ]
A.Why do you think so?
B.For what?
C.I could agree more.
D.You can say that again.
影响化学平衡的主要因素有()。
A.反应物或生成物的浓度
B.温度
C.气体压力
D.体积