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TOEFL IELTS BNC: 5127 COCA: 5952
valve
noun [C] /vælv/
singularvalve
pluralvalves
  1. 1
    the part of a machine or piece of equipment that opens and closes in order to control the flow of air or liquid (机器或设备上的)阀,活门
     Synonyms and related words
  2. 2
    the part of an organ or tube in your body that opens and closes to keep liquid flowing in the right direction (身体器官或管道的)瓣,瓣膜

    heart valves 心脏瓣膜

     Synonyms and related words
    General regions and organs inside the body: apparatus, canal, cavity...
  3. 3
    music the part of some musical instruments that opens and closes to change the sound of the note (一些乐器上的)活塞
     Synonyms and related words
    Parts of musical instruments: bellows, bow, bridge...
TOEFL IELTS BNC: 5127 COCA: 5952
valve

noun

ADJECTIVE | VERB + VALVE ADJECTIVEsafety安全閥shut-off截止閥non-return, one-way止逆閥;單向閥exhaust, inlet排氣閥;進氣閥drain, pressure-relief排水閥;減壓閥fuel, water, etc.燃油閥、水閥等heart, radiator, etc.心臟的瓣膜、散熱器閥門等faulty, leaking有故障的/滲漏的閥門VERB + VALVEfit, install安裝閥門The plumber will fit some new safety valves.水暖工將安裝幾個新的安全閥。open打開閥門You need special tools to open the valve.這種閥門要用專門的工具打開。close關閉閥門
TOEFL IELTS BNC: 5127 COCA: 5952

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