n.[c]

1. 【機】閥，活門
   The exhaust valve on my car has burnt out three times.

   我車子上的排氣閥已燒壞三次。

2. 【解】瓣，瓣膜
   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方向流動。

3. 【英】真空管
4. 貝殼
5. （管樂器的）活栓

vt.

1. 裝閥於
2. 以活門調節

n.

1. a device for controlling the passage of fluid through a pipe or duct, especially an automatic device which allows movement in one direction only.
2. a cylindrical mechanism to vary the effective length of the tube in a brass musical instrument.
3. Anatomy  & Zoology  a membranous fold in an organ or vessel which allows blood or other fluid to flow in one direction.
4. Zoology  each of the halves of the hinged shell of a bivalve mollusc or brachiopod.
5. Botany  each of the halves or sections into which a dry fruit dehisces.

[名]

1. 閥門。
   안전 밸브.

   安全閥。