释义 |
valveBrE /vælv/ NAmE /vælv/ noun a device for controlling the flow of a liquid or gas , letting it move in one direction only 阀;阀门;活门;气门a structure in the heart or in a veinthat lets blood flow in one direction only (心脏或血管的)瓣(膜)a device in some brass musical instruments for changing the note (铜管乐器的)阀键,活塞 |