ratchet
/'rætʃit/
📖 中文释义
- n. 棘轮, 棘爪
- [机] 棘轮, 棘齿轮
🔗 释义中的汉语词
🧩 词形变化
📘 English Definition(英文释义)
- n. mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
- v. move by degrees in one direction only