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sealing off
compr. 脱焊
sealing-off
gen. 脱〔拆,开〕焊; 烫〔熔〕开
dril. 开焊
ecol. 堵塞
el. 开封
eng.geol. 封闭
oil 脱焊
tech. 封口; 拆焊
sealing- off: 3 phrases in 1 subject
Technology3