金属极惰性气体保护焊 meaning in Chinese

metal inert gas welding
metal inert-gas arc welding

Welding and allied processes - joint preparation - metal inert gas welding and tungsten inert gas welding of aluminium and its alloys
焊接和相关工艺.接头的准备.铝及其合金的金属极惰性气体保护焊和钨极惰性气体保护焊
Welding and allied processes - recommendations for joint preparation - part 3 : metal inert gas welding and tungsten inert gas welding of aluminium and its alloys
焊接和相关工艺.焊缝准备的推荐方法.第3部分:铝及其合金的金属极惰性气体保护焊和钨极惰性气体保护焊