| 釋義 |
valve /vaelv; vaelv/ n 1 (sorts of) mechanical device for controlling the flow of air, liquid, gas or electrons in one direction only: (控制空氣、液體、 瓦斯或電子使之單向流動(dòng)的) 制閥; 活門; 活瓣; 汽門： the inlet/outlet ~s of a petrol or steam engine; 汽油發(fā)動(dòng)機(jī)或蒸汽機(jī)的進(jìn)氣 (排氣) 門; the ~ of a bicycle tyre. 腳踏車輪胎的氣嘴。 → the-illus at bicycle. 參看 -bicycle 之插圖。 2 structure in the heart or in a blood-vessel allowing the blood to flow in one direction only. (心臟或血管的) 瓣膜。 3 ('radio) ~, thermionic ~ used in a radio (US U - tube). 真空管。 → thermionic. 4 device in musical wind instruments, eg a cornet, for changing the pitch by changing the length of the column of air. (管樂器, 如短號(hào)，用以改變音調(diào)的) 栓塞。 valvular /'vael-vjula (r); 1 vaelvjalw/ adj of the ~s of the heart or blood-vessels: (心臟或血管的) 瓣膜的： valvular disease of the heart. 心脈瓣膜為。 |