中文字幕一区二区人妻电影,亚洲av无码一区二区乱子伦as ,亚洲精品无码永久在线观看,亚洲成aⅴ人片久青草影院按摩,亚洲黑人巨大videos

單詞 > 單詞
單詞大全 查英文單詞 英文單詞解釋
valve
美音: [v?lv] 英音: [v?lv]

第三人稱(chēng)單數(shù):valves第三人稱(chēng)復(fù)數(shù):valves現(xiàn)在分詞:valving過(guò)去分詞:valved過(guò)去式:valved

valve基本解釋

名詞閥; 真空管; (管樂(lè)器的)活栓; (心臟的)瓣膜

及物動(dòng)詞裝閥于; 以活門(mén)調(diào)節(jié)

valve相關(guān)例句

名詞

1. The exhaust valve on my car has burnt out three times.
我車(chē)子上的排氣閥已燒壞三次。

2. valve的意思

2. The valves of the heart allow the blood to pass in one direction only.
心臟的瓣膜使血液只能朝一個(gè)方向流動(dòng)。

valve網(wǎng)絡(luò)解釋

1. valve在線(xiàn)翻譯

1. 汽門(mén):因?yàn)榘l(fā)動(dòng)機(jī)長(zhǎng)時(shí)間停止, 起潤(rùn)滑作用的機(jī)油會(huì)因地心引力而往下流到發(fā)動(dòng)機(jī)底部, 發(fā)動(dòng)機(jī)在冷車(chē)啟動(dòng)時(shí), 位于發(fā)動(dòng)機(jī)頂部的凸輪軸(CAM)及汽門(mén)(VALVE)潤(rùn)滑較不足, 所以磨損較大.

valve詞典解釋

1. 閥;活門(mén)
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. (心臟的)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.
他的一個(gè)心瓣也有毛病。

3. see also: safety valve

valve英英釋義

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