英语词汇“backing strap”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	backing strap
释义	backing strap 基本例句衬垫 This welding backing is used with all one-side processes.Especially for those which do not demand back bead cleaning.本衬垫可用于各种单面焊接工艺的位置，特别适用于不一定要求封底焊道的场合。
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