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lever    音标拼音: [l'ɛvɚ] [l'ivɚ]
n. 杠杆,似杠杆之工具
vt. 撬开
vi. 使用杠杆

杠杆,似杠杆之工具撬开使用杠杆

lever
开闭杆

lever
杆

lever
n 1: a rigid bar pivoted about a fulcrum
2: a simple machine that gives a mechanical advantage when given
a fulcrum
3: a flat metal tumbler in a lever lock [synonym: {lever}, {lever
tumbler}]
v 1: to move or force, especially in an effort to get something
open; "The burglar jimmied the lock": "Raccoons managed to
pry the lid off the garbage pail" [synonym: {pry}, {prise},
{prize}, {lever}, {jimmy}]

Lever \Le"ver\ (l[=e]"v[~e]r or l[e^]v"[~e]r; 277), n. [OE.
levour, OF. leveor, prop., a lifter, fr. F. lever to raise,
L. levare; akin to levis light in weight, E. levity, and
perh. to E. light not heavy: cf. F. levier. Cf. {Alleviate},
{Elevate}, {Leaven}, {Legerdemain}, {Levee}, {Levy}, n.]
1. (Mech.) A rigid piece which is capable of turning about
one point, or axis (the fulcrum), and in which are two or
more other points where forces are applied; -- used for
transmitting and modifying force and motion. Specif., a
bar of metal, wood, or other rigid substance, used to
exert a pressure, or sustain a weight, at one point of its
length, by receiving a force or power at a second, and
turning at a third on a fixed point called a fulcrum. It
is usually named as the first of the six mechanical
powers, and is of three kinds, according as either the
fulcrum F, the weight W, or the power P, respectively, is
situated between the other two, as in the figures.
[1913 Webster]

2. (Mach.)
(a) A bar, as a capstan bar, applied to a rotatory piece
to turn it.
(b) An arm on a rock shaft, to give motion to the shaft or
to obtain motion from it.
[1913 Webster]

{Compound lever}, a machine consisting of two or more levers
acting upon each other.

{Lever escapement}. See {Escapement}.

{Lever jack}. See {Jack}, n., 5.

{Lever watch}, a watch having a vibrating lever to connect
the action of the escape wheel with that of the balance.


{Universal lever}, a machine formed by a combination of a
lever with the wheel and axle, in such a manner as to
convert the reciprocating motion of the lever into a
continued rectilinear motion of some body to which the
power is applied.
[1913 Webster]


Lever \Lev"er\ (l[=e]"v[~e]r), a. [Old compar. of leve or lief.]
More agreeable; more pleasing. [Obs.] --Chaucer.
[1913 Webster]

{To be lever than}. See {Had as lief}, under {Had}.
[1913 Webster]


Lever \Lev"er\, adv.
Rather. [Obs.] --Chaucer.
[1913 Webster]

For lever had I die than see his deadly face.
--Spenser.
[1913 Webster]

73 Moby Thesaurus words for "lever":
Charlie McCarthy, agent, ancilla, appliance, bar, beam, boom,
cant hook, claw bar, contrivance, crab, crane, crank, creature,
crow, crowbar, derrick, device, dummy, dupe, erector, forklift,
gantry crane, get a foothold, get leverage, go-between, handmaid,
handmaiden, handspike, hoist, hydraulic tailgate, implement,
instrument, interagent, intermediary, intermediate, intermedium,
iron crow, jack, jackscrew, jimmy, lift, lifter, limb,
marlinespike, mechanism, mediator, medium, midwife, minion, organ,
outrigger, pawn, peavey, pedal, pinch bar, plaything, prize, pry,
puppet, ripping bar, servant, slave, spar, stooge, tackle, tool,
toy, treadle, vehicle, wedge, windlass, wrecking bar


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英文字典中文字典相关资料:


  • Lever | Modern Recruiting Software ATS
    What is Lever and how does it support modern recruiting? Lever is a leading recruitment software and applicant tracking system platform that combines applicant tracking, candidate relationship management, and recruitment analytics software in one solution
  • LEVER
    LEVER is an architectural design practice based in Portland, Oregon and Los Angeles, California
  • LEVER Definition Meaning - Merriam-Webster
    The meaning of LEVER is a bar used for prying or dislodging something How to use lever in a sentence
  • Lever - Wikipedia
    A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum A lever is a rigid body capable of rotating on a point on itself
  • Lever | Simple Machine, Force Multiplication Fulcrum | Britannica
    Lever, simple machine used to amplify physical force All early people used the lever in some form, for moving heavy stones or as digging sticks for land cultivation
  • What is Lever, its Uses, Parts, Diagram and How it Works?
    A lever is a basic device that consists of a beam or rigid rod pivoting at a fixed hinge, or fulcrum It is used to apply force to a load and typically offers a mechanical advantage
  • Lever: Definition, Parts, Types, and Examples - Science Facts
    The lever is a simple machine What does it do and how does it work? Learn its description, along with parts, types, examples, and diagrams
  • Lever - definition of lever by The Free Dictionary
    To move or lift with a lever: levered up the manhole cover 2 To move (oneself, for example) in a manner resembling the use of a lever: "[He] levered himself out the window all the way to his waist" (Stephen King) 3 To fund at least in part with borrowed money; leverage
  • Simple Machines - HyperPhysics
    With a lever, one can obtain a multiplication of force, but of course not a multiplication of energy The multiplication of force can be seen to arise from the equilibrium of torques, where an input force F e with a long lever arm L e can balance a larger resistance force F r with a short lever arm L r
  • How Does a Lever Work and What Can It Do? - ThoughtCo
    A lever is a simple machine with a beam and a fulcrum that moves things easily The position of a fulcrum determines how much force is needed to lift or move an object





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