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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
    Lever is a modern applicant tracking system (ATS) and recruiting CRM that helps companies attract, nurture, and hire top talent faster Built for growing and enterprise teams, Lever combines candidate relationship management, automation, analytics, and collaborative hiring tools in one platform
  • Clever
    Clever’s identity platform, uniquely designed for education, allows schools and applications to secure all identities, control your data, and power classroom learning Clever offers one secure place for teachers and students to access the applications they love and depend on
  • Lever Hire
    Lever's use of information received from Google APIs will adhere to Google API Services User Data Policy, including the Limited Use requirements
  • Types of Lever - GeeksforGeeks
    A lever consists of a rigid bar or beam that rotates about a fixed point called the fulcrum By adjusting the positions of the applied force and the load, a lever can amplify or redirect force, making difficult tasks easier
  • 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 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: 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
  • What is Lever?- Principle, Types, And Examples
    A lever works by reducing the amount of force needed to move an object or lift a load A lever does this by increasing the distance through which the force acts
  • 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
  • LEVER | English meaning - Cambridge Dictionary
    LEVER definition: 1 a bar or handle that moves around a fixed point, so that one end of it can be pushed or pulled… Learn more





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