valve
n. 活瓣, 阀, 活门 v. 装阀, 用阀调节
发音
词形变化
教材释义与例句
阀； 瓣膜；真空管；活门
装阀于；以活门调节
释义与例句
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1.
A device that controls the flow of a gas or fluid through a space, such as a pipe, manifold, or plenum.
阀门
open the valve
close the valve
shut off the valve
An oil refinery has an impressively vast number and variety of valves.
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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
In nearly all internal combustion engines, the valves are of the poppet type.
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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.
瓣膜
医学the ileocecal valve
the atrioventricular valves
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4.
One of the leaves of a folding door or of a window sash.
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5.
A vacuum tube.
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6.
One of the pieces into which certain fruits naturally separate when they dehisce.
生物 植物学 -
7.
A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry.
生物 植物学 -
8.
One of the pieces or divisions of bivalve or multivalve shells.
生物 -
9.
One of the two similar portions of the shell of a diatom.
生物
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1.
To control (flow) by means of a valve.
及物
词汇关系
上位词 5
下位词 10
部分词 1
整体词 5
相关短语
词源
From Middle English valve, from Latin valva (“double door, valve”). Doublet of valva.
来源：wiktionary