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field welding
bridg.constr. 工地焊
met. 装配焊接; 工地焊接
oil, transp. 工地【现场】焊接
wind. 现场焊接
field weld
avia. 现场焊
met. 现场焊接; 装配焊接; 工地焊接
field welding: 7 phrases in 2 subjects
Metallurgy1
Technology6