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埋弧自动焊 máihú zìdònghàn
chem. union melt welding
hydroel.st. submerged arc welding
met. automatic submerged-arc welding; submerged arc automatic welding
space automatic submerged arc welding (焊剂层下自动弧焊)
tech. Lincoln weld; submerged automatic arc welding; union-melt welding
埋 弧 自动焊: 15 phrases in 4 subjects
Bridge construction1
Metallurgy2
Shipbuilding3
Technology9