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провар nstresses
gen. 焊入深度
O&G 焊透
oil.proc. ; 熔深; 完全熔化
tech. 穿度; 焊补; 焊焰穿透; 焊人深度; 焊透深度
провар: 29 phrases in 6 subjects
Electronics1
General3
Metallurgy2
Oil processing plants4
Technology18
Welding1