valve

[vAlv]

n.

阀, [英] 电子管, 真空管

valve

valve

AHD:[v²lv]

D.J.[v#lv]

K.K.[v#lv]

n.（名词）

Anatomy A membranous structure in a hollow organ or passage, as in an artery or a vein, that folds or closes to prevent the return flow of the body fluid passing through it.

【解剖学】 瓣，瓣膜：在中空器官或管道，例如静脉或动脉血管中的膜状结构，能够收紧或关闭以防止通过其的体液倒流

Any of various devices that regulate the flow of gases, liquids, or loose materials through piping or through apertures by opening, closing, or obstructing ports or passageways.

阀，活门：多种的装置一种，由开启、关闭或阻塞出口或通道来控制通过管道或开口的气体、液体或流动物质

The movable control element of such a device.

栓塞：这种装置的可移动的控制部分

Music A device in a brass wind instrument that permits change in pitch by a rapid varying of the air column in a tube.

【音乐】 活瓣：在铜管乐器中通过在管中迅速改变气流而完成音调的改变的一种装置

Biology

【生物学】

One of the paired, hinged shells of certain mollusks and of brachiopods.

贝壳：某些软体动物或鳃足动物的成对的、铰接开合的贝壳之一

One of the two silicified halves of the cell wall of a diatom.

瓣：硅藻的两片硅化的细胞壁之一

The entire, one-piece shell of a snail and certain other mollusks.

蜗牛壳：蜗牛或某些其它软体动物的完整、单一的壳

Botany

【植物学】

One of the sections into which the wall of a seedpod or other dehiscent fruit splits.

裂片：心皮壁或其它开裂果实的壁裂开的部分之一

A lidlike covering of an anther.

盖状瓣

Chiefly British An electron tube or a vacuum tube.

【多用于英国】 电子管或真空管

Archaic Either half of a double or folding door.

【古语】 双道门或折门中的一扇

v.tr.（及物动词）

valved， valv.ing， valves

To provide with a valve.

装阀于…

To control by means of a valve.

用阀调节

Middle English [leaf of a door]

中古英语 [门扇]

from Latin valva * see wel- 2

源自 拉丁语 valva *参见 wel- 2

valve“less

adj.（形容词）

valve

[vAlv]

n.

阀；活门；气门

电子管

（心脏）瓣膜

（贝类的）壳瓣