ratchet

英['rætʃɪt]美['rætʃɪt]
  • n. 棘轮；棘齿
  • v. （使）渐进
  • =rachet.

    • 记忆方法

    词源记忆法
    来自法语rochet，线轴，纺锤，词源同rock，rocket.引申词义棘轮。插入字母t，比较bake，batch.
      noun(名词)
      1. 棘轮，棘齿

    双解例句

    noun(名词)
    1. 棘轮，棘齿

    小知识

    A ratchet is a gadget with mechanical teeth on a wheel that moves in only one direction. Therefore, ratcheting is to move something slowly in one direction.

    A ratchet is a device that allows you to move or crank something in a specific direction: a ratchet only moves one way. You can tell a ratchet by the wheel of mechanical teeth. Ratchets are part of larger devices, especially in factories. Also, if you ratchet something up or down, you're gradually moving it in that direction. You can ratchet something physically, or a great speaker could ratchet up the energy in a crowd.

    实用短语

    1. ratchet-tailed treepie

      塔尾树鹊

    2. ratchet & clank

      瑞奇与叮当,拉捷特与克拉克,瑞奇与叮铛,瑞奇与叮当四位一体

    3. ratchet brace

      棘齿弓钻,棘轮摇钻,棘轮曲柄钻,棘轮扳钻

    4. ratchet and pawl

      棘轮和爪,棘轮机构,棘轮与爪,棘轮和掣爪

    5. ratchet effect

      齿轮效应,制轮作用,棘轮

    6. ratchet spanner

      棘轮扳手,棘轮弹簧

    7. ratchet wheel

    8. rescue ratchet

      救护车

    9. ratchet wrench

    常用短语

    1. ratchet wheel

      n. [机]棘轮

    2. ratchet effect

      齿轮效应

    3. ratchet up

      逐渐升高；略微调高

    单词用法

    短语动词
    短语动词 ratchet down （使）有一定减少（或降低） ratchet up （使）有一定上升（或提高） 查看更多 以下资源来自牛津词典 ratchet (sth)?up （使）逐渐小幅增长 to increase, or make sth increase, repeatedly and by small amounts Overuse of credit cards has ratcheted up consumer debt to unacceptable levels. 滥用信用卡使消费债务逐渐增加到了难以接受的地步。 收起

    同义词

    tooth