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valve    音标拼音: [v'ælv]
n. 活瓣,阀,活门
vt.
vi. 装阀,用阀调节

活瓣,阀,活门装阀,用阀调节

valve


valve
n 1: a structure in a hollow organ (like the heart) with a flap
to insure one-way flow of fluid through it
2: device in a brass wind instrument for varying the length of
the air column to alter the pitch of a tone
3: control consisting of a mechanical device for controlling the
flow of a fluid
4: the entire one-piece shell of a snail and certain other
molluscs
5: one of the paired hinged shells of certain molluscs and of
brachiopods

Valve \Valve\, n. [L. valva the leaf, fold, or valve of a door:
cf. F. valve.]
[1913 Webster]
1. A door; especially, one of a pair of folding doors, or one
of the leaves of such a door.
[1913 Webster]

Swift through the valves the visionary fair
Repassed. --Pope.
[1913 Webster]

Heavily closed, . . . the valves of the barn doors.
--Longfellow.
[1913 Webster]

2. A lid, plug, or cover, applied to an aperture so that by
its movement, as by swinging, lifting and falling,
sliding, turning, or the like, it will open or close the
aperture to permit or prevent passage, as of a fluid.
[1913 Webster]

Note: A valve may act automatically so as to be opened by the
effort of a fluid to pass in one direction, and closed
by the effort to pass in the other direction, as a
clack valve; or it may be opened or closed by hand or
by mechanism, as a screw valve, or a slide valve.
[1913 Webster]

3. (Anat.) One or more membranous partitions, flaps, or
folds, which permit the passage of the contents of a
vessel or cavity in one direction, but stop or retard the
flow in the opposite direction; as, the ileocolic, mitral,
and semilunar valves.
[1913 Webster]

4. (Bot.)
(a) One of the pieces into which a capsule naturally
separates when it bursts.
(b) One of the two similar portions of the shell of a
diatom.
(c) A small portion of certain anthers, which opens like a
trapdoor to allow the pollen to escape, as in the
barberry.
[1913 Webster]

5. (Zool.) One of the pieces or divisions of bivalve or
multivalve shells.
[1913 Webster]

{Air valve}, {Ball valve}, {Check valve}, etc. See under
{Air}. {Ball}, {Check}, etc.

{Double-beat valve}, a kind of balance valve usually
consisting of a movable, open-ended, turban-shaped shell
provided with two faces of nearly equal diameters, one
above another, which rest upon two corresponding seats
when the valve is closed.

{Equilibrium valve}.
(a) A balance valve. See under {Balance}.
(b) A valve for permitting air, steam, water, etc., to
pass into or out of a chamber so as to establish or
maintain equal pressure within and without.

{Valve chest} (Mach.), a chamber in which a valve works;
especially (Steam Engine), the steam chest; -- called in
England {valve box}, and {valve casing}. See {Steam
chest}, under {Steam}.

{Valve face} (Mach.), that part of the surface of a valve
which comes in contact with the {valve seat}.

{Valve gear}, or {Valve motion} (Steam Engine), the system of
parts by which motion is given to the valve or valves for
the distribution of steam in the cylinder. For an
illustration of one form of valve gear, see {Link motion}.


{Valve seat}. (Mach.)
(a) The fixed surface on which a valve rests or against
which it presses.
(b) A part or piece on which such a surface is formed.

{Valve stem} (Mach.), a rod attached to a valve, for moving
it.

{Valve yoke} (Mach.), a strap embracing a slide valve and
connecting it to the valve stem.
[1913 Webster]

48 Moby Thesaurus words for "valve":
aerophone, ball cock, ball valve, bell, bung, bunghole,
check valve, cock, cork, discharge tube, double reed, drain cock,
draw cock, embouchure, faucet, gate, horn, key, lid, lip,
mouthpiece, needle valve, peg, petcock, pin, pipe, plug,
radio tube, reed, sea cock, slide, spigot, spike, spile, spill,
stop, stopcock, stopgap, stopper, stopple, tap, tooter, tube,
vacuum tube, valvula, valvule, wind, wind instrument


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  • About Us - Valve Corporation
    We make consumer electronic devices that expand and improve gaming on the PC Things like the Steam Deck, Valve Index, Steam Controller, and Steam Link We invented the VR technologies that power the Vive, an interactive VR system brought to market in partnership with HTC
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    We hire people with broad skill sets who also exhibit deep expertise While nobody at Valve has a job title, we do have certain fields that we're always looking to hire in
  • Check Valves, Ball Valves, Low Pressure Valve Manufacturer | U. S . . .
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  • Valve - Valve Developer Community - Valve Corporation
    Valve (sometimes stylized VALV E; officially Valve Corporation and previously Valve Software) is an entertainment software and technology company founded in 1996 and headquartered in Bellevue, Washington
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    Replace upper water supply, flush valve cartridge, or the whole system in pressurized-tank toilets
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    Hello readers! In this post, we’ll discuss what is a valve? and the different types of valves and their applications using illustrations
  • What is a Valve And how does It Work? - Mechanical Boost
    a valve is a mechanical tool used to regulate, control, or direct the different fluids flow, such as slurries, fluidized solids, liquids, or gases, by closing or opening, or partially blocking the flow of fluid
  • Valve | Types, Uses Benefits | Britannica
    Valve, in mechanical engineering, device for controlling the flow of fluids (liquids, gases, slurries) in a pipe or other enclosure Control is by means of a movable element that opens, shuts, or partially obstructs an opening in a passageway





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