单词	蝴蝶式跪挡
释义	蝴蝶式跪挡 butterfly drop
随便看	single phase double insulation electric drill single phase double insulation hand grinder single-phase double-speed motor single-phase drive singlephase driven single-phase earth single-phase earthed single-phase earthed fault singlephase earth fault single phase earth fault single-phase earth fault single phase earth fault detection single phase earth faults single phase earthing single-phase earthing single-phase earthing fault single-phase earthing short circuit single phase electric arc furnace single-phase electric-arc furnace single-phase electric- arc furnace single-phase electric blower single-phase electric energy meter single-phase electricfurnace single phase electric furnace single-phase electric furnace