free-wheel rectifier飞轮整流器
free-wheel car滑行车
free-wheel clutch空转离合器
free-wheel diode飞轮二极管
free-rolling wheel空转轮
automatic free-wheel自动自由轮
free-wheel adaptor花盘连杆
free-wheel de-excitation自然灭磁
Free-wheel hub for starter起动导向筒
V-I（不及物动词） If you freewheel, you travel, usually downhill, on a bicycle without using the pedals, or in a vehicle without using the engine. (骑自行车或开车时)凭惯性前进
He freewheeled back down the course.
他靠惯性滑行返回路途。