棘轮

棘輪

jílún

noun #31,722

Measure Word

一个棘轮 gè

Meanings

1 ratchet
2 ratchet wheel

Characters

Examples

扳手内部有一个棘轮装置。

Bānshǒu nèibù yǒu yí ge jílún zhuāngzhì.

There is a ratchet mechanism inside the wrench.

棘轮只能朝一个方向转动。

Jílún zhǐ néng cháo yí ge fāngxiàng zhuàndòng.

A ratchet can only turn in one direction.

Tips

memory

棘 (jí) means 'thorn' — picture the thorn-like teeth on the gear that catch the pawl and stop it slipping back. 轮 (lún) is 'wheel'. So literally 'thorn-wheel': a one-way wheel.

Stroke Order

棘 jí

轮 lún