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Terms for subject Metallurgy containing 背面 | all forms | in specified order only
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保护焊缝背面用气体backup gas
焊缝背面back of weld
焊缝的背面里面,反面underside of weld
背表面back surface resolution
背表面back surface
背面reverse side
背面back side
背面乳胶back emulsion
背面坡口underside groove
背面坡口backing groove
背面底焊焊缝back run
背面焊缝封底焊缝back weld
背面照明光源系统back lighting light source system