V
基本词汇
n.瓣膜；真空管；阀门；电子管
形容词: valveless 过去式: valved 过去分词: valved 现在分词: valving 第三人称单数: valves
详情解释
英英释义
词典解释
网络解释
noun
1. one of the paired hinged shells of certain molluscs and of brachiopods
2. the entire one-piece shell of a snail and certain other molluscs
3. control consisting of a mechanical device for controlling the flow of a fluid
4. device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
5. a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
1. 阀;活门
A valve is a device attached to a pipe or a tube which controls the flow of air or liquid through the pipe or tube.
2. （心脏的）瓣，瓣膜
A valve is a small piece of tissue in your heart or in a vein which controls the flow of blood and keeps it flowing in one direction only.
e.g. He also has problems with a heart valve.
他的一个心瓣也有毛病。
3. see also: safety valve
1. valve在线翻译
1. 汽门：因为发动机长时间停止, 起润滑作用的机油会因地心引力而往下流到发动机底部, 发动机在冷车启动时, 位于发动机顶部的凸轮轴(CAM)及汽门(VALVE)润滑较不足, 所以磨损较大.
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