短語詞組短語Partial l discharge detector 局部放電檢測儀partial l discharge 局部放電partial discharge test [電]局部放電試驗(yàn);局部放電測試Partial discharge detector 局部放電檢測儀Low partial discharge levels 低局放partial discharge tester 局放測試儀partial discharge under DC 直流局部放電Partial Discharge Testing 局部放電試驗(yàn) 返回 partial discharge