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氮弧焊 (welding) | |||
氩弧 | |||
氮弧 | |||
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氩弧的 |
argon arc : 45 phrases in 13 subjects |
Automobiles | 1 |
Aviation | 2 |
Chemistry | 2 |
Compressors | 1 |
Electric machinery | 2 |
Electronics | 3 |
Metallurgy | 13 |
Oil / petroleum | 1 |
Rail transport | 2 |
Shipbuilding | 2 |
Space | 4 |
Technology | 11 |
Wind Energy | 1 |