valve
英 [v?lv]
美[v?lv]
- n. 閥；[解剖] 瓣膜；真空管；活門
- vt. 裝閥于；以活門調節(jié)
- n. (Valve)人名；(俄、芬)瓦爾韋
CET6TEM8IELTSGRE考研TOEFL中低頻詞常用詞匯
詞態(tài)變化
復數:?valves;
助記提示
1. volv- "roll" => valve, literally "that which turns".
2. => section of a folding or revolving door.
2. => section of a folding or revolving door.
中文詞源
valve 閥門
來自PIE*wel,轉，旋轉，詞源同voluble,involve,用來指閥門。
英文詞源
- valve
- valve: [14] The etymological notion underlying valve is of a door opening and closing. The word was adapted from Latin valva, which denoted one of the sections of a folding or revolving door, and may have had links with volvere ‘roll’ (source of English revolve). It carried its original meaning with it into English, but it was not used at all widely until various metaphorical senses, such as ‘flap controlling the flow of a fluid’ and ‘half of a shell’, evolved. The electronic valve is so called because current can flow in only one direction through it; the usage dates from the early 20th century.
- valve (n.)
- late 14c., "one of the halves of a folding door," from Latin valva (plural valvae) "section of a folding or revolving door," literally "that which turns," related to volvere "to roll" (see volvox). Sense extended 1610s to "membranous fold regulating flow of bodily fluids;" 1650s to "mechanical device that works like an anatomical valve;" and 1660s in zoology to "halves of a hinged shell." Related: Valved.
雙語例句
- 1. The bag is resealed with a simple twist of the valve.
- 只需擰一下閥門，氣囊就能重新密封。
來自柯林斯例句
- 2. The intake valve was jammed open.
- 進氣閥卡住了，關不上。
來自柯林斯例句
- 3. He replaced a dud valve.
- 他換掉了壞閥門。
來自柯林斯例句
- 4. He also has pro-blems with a heart valve.
- 他的一個心瓣也有毛病。
來自柯林斯例句
- 5. Exercise is a good safety valve for the tension that builds up at work.
- 鍛煉身體是排解工作壓力的好辦法。
來自《權威詞典》