valve

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.
    — open the valve
  2. A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.; Such a device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit.
    — Near-synonym: poppet valve
  3. 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 control the flow in the opposite direction.
    — the ileocecal valve
  4. One of the leaves of a folding door or of a window sash.
  5. A vacuum tube. UK
  6. One of the pieces into which certain fruits naturally separate when they dehisce.
  7. A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry.
  8. One of the pieces or divisions of bivalve or multivalve shells.
  9. One of the two similar portions of the shell of a diatom.
动词 v.
  1. To control (flow) by means of a valve. transitive

词形变化

valves plural valves present,singular,third-person valving participle,present valved participle,past valved past

词汇关系

衍生词
aortic valve atrioventricular valve bag valve mask ball valve Bauhin's valve bicuspid valve blow valve butterfly valve check valve clack valve colic valve continuous variable valve timing demand valve Douglas valve D valve equivalve escape valve Eustachian valve exhaust valve flapper valve Fleming valve foot valve freeze valve French valve gate valve head valve heart valve ileocaecal valve ileocecal valve inlet valve intake valve jockey valve Kingston valve leaf valve mitral valve needle valve non-return valve overhead valve pilot valve piston valve plug valve poppet valve pressure valve pulmonary valve pulmonic valve pump valve puppet valve pyloric valve quadrivalve relief valve retaining valve return valve reversing valve safety valve safety-valve screw valve scum valve semilunar valve sequential valve timing side valve slide valve sluice valve snifter valve snifting valve spring valve stop valve suction valve swing check valve tail valve Thebesian valve thermionic valve throttle valve toggle valve tricuspid valve triple valve trivalve Tulpius valve Tulp's valve univalve vacuum valve valval valvar valve amplifier valved valve gear valveless valve of Kerckring valve of Thebesius valve of Varolius valve oil valve snail valve timing valve train valvoplasty variable valve timing vein valve Wade-Dahl-Till valve

词源

词源 1
From Middle English valve, from Latin valva (“double door, valve”). Doublet of valva.
词源 2
From Middle English valve, from Latin valva (“double door, valve”). Doublet of valva.
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