棘轮 (jí lún) — catraca; roda de catraca

Definição

Exemplos

• 这个棘轮的结构非常精妙。
  Zhè ge jí lún de jié gòu fēi cháng jīng miào.
  The structure of this ratchet is very intricate.
• 机械工程师正在修理棘轮。
  Jī xiè gōng chéng shī zhèng zài xiū lǐ jí lún.
  The mechanical engineer is repairing the ratchet.
• 他设计了一个新棘轮来提高效率。
  Tā shè jì le yí gè xīn jí lún lái tí gāo xiào lǜ.
  He designed a new ratchet to improve efficiency.