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氦弧焊
hài hú hàn
avia.
Heliarc
;
helium shielded arc welding
oil
heliarc welding
space
Heliarc
(美国诺思罗普公司的一种专利的焊接技术)
;
helium arc welding
;
heliwelding
tech.
heliarc welding
(法)
;
helium arc welding
(法)
氦弧 焊
:
6 phrases
in 3 subjects
Metallurgy
2
Shipbuilding
1
Technology
3
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