fly.wheel
n.（名词）A heavy-rimmed rotating wheel used to minimize variations in angular velocity and revolutions per minute, as in a machine subject to fluctuation in drive and load.飞轮：一种用于减小拐弯时速度变化和每分钟转数的粗边转轮，如减小机械在运行或装载中的变化An analogous device, especially one used to regulate the speed of clockwork.飞轮：尤指调整钟表里机械装置的诸如此类的设计
