电弧焊/电焊 electric arc welding
电弧焊及电渣焊 Electric Arc Welding andElectroslag Welding ; Electroslag Welding ; Electric Arc Welding & ; Electric Arc Welding & Electroslag Welding
电弧焊电焊
Arc welding, electric welding
以上为机器翻译结果，长、整句建议使用 人工翻译 。
我是电焊工，从事手工电弧焊和二氧化碳气体保护焊工作，通过…
I am, electric welders engaged in manual arc welding and carbon dioxide welding work, through these years of electric welding work my technology …
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