?空冷电动机

... motor wiring 电动机布线，电动机嵌线 motor with air cooling 空冷电动机 motor with compound characteristic 复励特性电动机 ...

?风冷式电动机

风冷式电动机 air-cooled motor; motor with air cooling; ventilated motor 风冷式发动机 air cooling engine; air-cooled engine; blower cooled engine .