helium arc welding 氦弧焊 ; 氦气保护焊
helium-arc 氦弧焊
helium-xenon arc lamp 氦氙电弧灯 ; 氦氖激光
helium shielded arc welding 氦弧焊
helium shielded-arc welding 氦气保护弧焊
However, the effect of electromagnetic force is stronger than that of the plasma drag force in helium arc.
在氩弧下，影响熔池形貌的另一个重要的驱动力是气体剪切力，而氦弧下则是电磁力。
Helium is used for arc welding and leak detection, mostly, although NASA USES it to pressurize space shuttle fuel tanks.
虽然美国宇航局用它来给航天飞船的燃料箱加压，氦主要还是用来做弧焊和裂纹检测。
Gaseous helium is used as an inert shielding gas in metal arc and laser welding.
在金属电弧和激光焊接中气态氦用作惰性屏蔽气体。
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