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ratchet

[?r?t??t] [?r?t??t]
  • 复数:ratchets;
  • 同义词
    • ratchet的同义词之:
      tooth
    柯林斯高阶英汉双解学习词典释义
    • N-COUNT
      (防倒转的)棘齿,棘轮
      In a tool or machine, a ratchet is a wheel or bar with sloping teeth, which can move only in one direction, because a piece of metal stops the teeth from moving backwards.
      例句
      The chair has a ratchet below it to adjust the height... 这把椅子下面有棘轮调整高度。 A ratchet mechanism transfers the thread from spool to bobbin. 一种棘齿装置把线从线轴转到梭心上。
    • V-ERG
      (使)(工具或机器)发出嗒嗒声
      If a tool or machine ratchets or if you ratchet it, it makes a clicking noise as it operates, because it has a ratchet in it.
      例句
      The rod bent double, the reel shrieked and ratcheted... 操作杆进一步弯曲,线轴发出刺耳的吱吱声。 She took up a sheet and ratcheted it into the typewriter. 她拿起一张纸,把它哗哗啦啦地塞到打字机中。
    • N-SING
      (形势的)每况愈下,恶化
      If you describe a situation as a ratchet, you mean that it is bad and can only become worse.
      例句
      ...another raising of the ratchet of violence in the conflict. 冲突中又一次的暴力升级
    英英词典释义
    • Noun
      1. mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
    • Verb
      1. move by degrees in one direction only;
      "a ratcheting lopping tool"
    行业词典
    • 体育: 棘轮;
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