字典網>> 英漢字典>> S開頭詞條>>single welded joint的意思 漢英字典single welded joint中文翻譯：【化】 單面焊 字典網 相關詞條：singleness single-line tariff single-signal reception single knock-on single-cut file single-stage evaporation single U-groove single election single-chamber single level memory