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lead-seal
oil 引线封焊
lead seal
archit. 灌铅
el.mach. 引线密封
law 输人端封接
met. 铅封; 输电引线封接
tech. 引线封焊; 输入端封接
lead-seal: 20 phrases in 4 subjects
Economy1
Metallurgy6
Oil / petroleum9
Technology4