汽轮机汽缸裂纹产生的基本原因有哪四个方面?
参考答案:
铸造工艺方面、补焊工艺运行方面及结构设计方面。
-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.
要做到诚实守信,应该()。
A.按合同办事
B.绝不背叛朋友
C.按领导与长辈的要求去做
D.始终把企业现实利益放在第一位