字典網>> 英漢字典>> W開頭詞條>>welding on bottom的意思 漢英字典welding on bottom中文翻譯：【化】 底焊welding on bottomwelding on bottom英文字典相關詞條：welding rolls welding socket welding backing welding gloves welding tub welding strain welding ground welding arc voltage welding electrode hold welding current