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to phrases
torch head
met. 割炬烧喷嘴; 焰炬头; 焊炬座; 焊枪连接插头
tech. 焊枪管; 气炬焊头; 气焊嘴; 喷灯头; 炬头
torch head: 8 phrases in 2 subjects
Metallurgy6
Technology2