常見例句雙語例句The article discusses the automatic and manual feeding concept of the welding machine through analyzing the circuit of the wire feeding system of the CO2 arc welding machine.通過對二氧化碳焊機送絲系統(tǒng)的電路分析，論述了焊機的自動送絲和手動送絲原理。 返回 manual arc welding machine