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stringer bead
construct. 窄焊道焊条不横摆
oil 根部焊道; 焊蚕; 熔敷第一焊道; 窄焊道; 直线焊道
plast. 焊珠; 窄焊道〈焊条不横摆〉
tech. 线状焊道; 窄焊条 (焊条不横摆)
stringer bead
: 4 phrases in 2 subjects
Oil / petroleum2
Technology2