Noun:

1. regulator consisting of a heavy wheel that stores kinetic energy and smooths the operation of a reciprocating engine

flype剥光,翻回折转,折叠盖flyv.飞；坐飞机；驾驶；逃跑；悬挂n.苍蝇；飞行；两翼昆虫fly with the velocity of以 ... 的速度飞翔fly wheel storage system飞轮储能系统flying spot store address飞点存储地址fly ash concrete pavement粉煤灰混凝土路面flying spot scanning tube飞点扫描管Flyback DC-DC converter反激式DC-DC变换器fly ash from incineration焚烧飞灰Fly by Auditory Reference按听觉飞行flying-saucer-shooter飞碟运动员flywheel attitude control飞轮姿态控制

1. If the flywheel is loose, a distinct knock will occur when the key is turned on.
   如果飞轮松动，当钥匙被打开的时侯，会发出一种明显的撞击声。