题目内容
(请给出正确答案)
[主观题]
Contamination will cause ______________.
A.good quality weldment
B.bad quantity welding
C.good quantity welding
D.poor quality weldment
提问人:网友lixin080108
发布时间:2022-01-07
A.good quality weldment
B.bad quantity welding
C.good quantity welding
D.poor quality weldment
B、fluidturbulence
C、componentmisalignment
D、pressuresurges
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