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单词 lever
释义

lever

听听怎么读
英 [?li:v?(r)]
美 [?lev?r]
是什么意思
  • n.

    杠杆;操作杆;工具;

  • vt.

    用杠杆撬动;

  • 变形

    复数:levers过去式:levered现在分词:levering第三人称单数:levers

    双语释义

    n.(名词)
    1. [C]杠杆 a bar for lifting sth heavy or opening sth, put one end under the thing you want to lift or open, and push the other end
    2. [C]操作杆 a thing that you pull or push to make a machine work
    v.(动词)
    1. vt. (用杠杆)移动〔撬开〕 move (sth) with a lever

    英英释义

    lever[ 'li:v?, 'le- ]

    • n.
      • a rigid bar pivoted about a fulcrum
      • a simple machine that gives a mechanical advantage when given a fulcrum
      • a flat metal tumbler in a lever lock

        同义词:lever tumbler

    • v.to move or force, especially in an effort to get something open

      同义词:prypriseprizejimmy

    学习怎么用

    词汇搭配

    用作名词 (n.)
    动词+~
    • move lever移动杠杆
    • pull〔push〕 a lever拉操纵杆(开动机器等),(在投票站)拉选票
    形容词+~
    • operating lever操纵杆
    • timing lever定时杆
    名词+~
    • brake〔control〕 lever刹车〔操纵〕杆
    • gear lever变速装置
    ~+名词
    • lever rule杠杆定律
    用作动词 (v.)
    副词+~
    • lever along〔away, out, over, up〕撬动,撬起
    ~+介词
    • lever ...into...用杠杆把…撬进…

    词组短语

    release lever解锁手柄;分离杆

    lever principle杠杆原理

    brake lever制动杆

    lever handle手柄;杠杆手柄;杆式手柄;手柄操纵杆

    hand lever手柄;手制动杆;柄;手杆

    control lever控制杆;操纵杆

    lever type adj. 杠杆式

    shift lever变速杆

    gear lever[机]变速杆

    lever arm杠杆臂;活动臂

    connecting lever连接棒;连接杆;连接杠杆

    lever rule杠杆定则(定律)

    valve lever阀门杆;阀杠杆

    更多收起词组短语

    双语例句

    用作名词(n.)
    1. He employed his knife as a lever.
      他把刀子当杠杆用。
    2. This lever must serve some ulterior purpose.
      这撬棒准是用于不可告人的目的的。
    3. Push hard and the lever will go down.
      用力推就能把控制杆按下去。
    4. Move this lever to change gear.
      换档时扳动这根操纵杆。
    5. This latest incident may be the lever needed to change government policy.
      最近的事件或许可以作为迫使政府改变政策所需的手段。
    用作动词(v.)
    1. They managed to lever the door open.
      他们设法撬开了门。
    2. We are trying to lever the roots out, but in vain.
      我们试图撬掉这些树根,但没有成功。
    3. The worker is levering at the rock.
      工人用杠杆移动岩石。

    权威例句

    The lever of riches
    Lever's Histopathology of the Skin
    The Lever of Riches: Technological Creativity and Economic Progress
    The Lever of Riches--Technological Creativity and Economic Progress/Joel Mokyr(1990)
    A community approach as a lever for integrated health & social care
    Implementing the Seven Principles: Technology as Lever
    Increased lever pressing for amphetamine after pimozide in rats: implications for a dopamine theory of reward
    The neck region of the myosin motor domain acts as a lever arm to generate movement
    An atomic‐resolution atomic‐force microscope implemented using an optical lever
    Haloperidol and nucleus accumbens dopamine depletion suppress lever pressing for food but increase free food consumption in a novel ...
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