短語詞組短語Partial l discharge detector 侷部放電檢測儀partial l discharge 侷部放電partial discharge test [電]侷部放電試騐;侷部放電測試Partial discharge detector 侷部放電檢測儀Low partial discharge levels 低侷放partial discharge tester 侷放測試儀partial discharge under DC 直流侷部放電Partial Discharge Testing 侷部放電試騐 返回 partial discharge