Can the car parked in a quiet place, gradually pulled the handbrake, the number of the ratchet pulling while clicking sound announced, until the handle to the end stop.
能够将轿车停在比较安静的地方，渐渐拉起手刹，边拉边数棘轮宣布的咔嗒声，直到手柄拉到尽头停止。
2
Pulse electromagnetic DC motors, in their simplest form, consist of electromagnet with armature and ratchet wheel mounted on shaft. The right end of armature carries pawl.