有關220v380v的精選大全

220v380v電焊機哪個好
兩種焊機定義不同,沒有好壞之分。&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp三相電的三根線之間的電壓是380伏,而相與中性線之間稱為相電壓,電壓是220伏,還有兩...
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