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sealing bead
construct. 封口焊道〔珠〕; 密封焊蚕
plast. 封口焊道
tech. 密封条; 密封焊接; 密封焊道; 缝焊
sealing bead: 8 phrases in 4 subjects
Automobiles3
Chemistry1
Plastics3
Polymers1