题目内容

保证HAZ韧性主要是通过控制,而焊缝韧性除了与热输入有关外,还取决于。

查看答案
更多问题

低温钢焊接时的焊接方法:和应用较广,应用受到限制,一般不采用和。

低温钢焊接采用奥氏体焊接材料时,热裂纹倾向随着焊缝中Ni含量提高而减小。

A. 对
B. 错

31. Our president congratulated us on our outstanding performance and the great (achieve) _____ we have made in the past few year.32. You should look over this document carefully before (sign) ___ it.33. This City Guide gives business travelers all the information they need (plan) ____ their trip.34. The company (found) ____ over 20 years ago in Shenzhen by a Chinese businessman.35. ABC Company tries hard for excellence with a committed attitude to carry out business (proper)_____.

下列词语中是轻声的有()。

A. 快乐
B. 质量
C. 爱人
D. 效率

答案查题题库