- gas tungsten arc welding
- gtaw
- 钨: tungsten; wolfram
- 电极: electrode; pole
- 惰性气体保护焊: inert gas shielded-arc weldi ...
- 钨电极惰性气体保护电弧焊: tungstun-inert-gas arc welding
- 金属极惰性气体保护焊: metal inert gas welding; metal inert-gas arc welding
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