valve

详细解释:n. 活瓣, 阀, 活门
vt. 装阀, 用阀调节
vi. 装阀, 用阀调节
【化】阀
【医】瓣, 瓣膜; 阀, 活门

词型变化：

形容词:valveless动词过去式:valved过去分词:valved现在分词:valving第三人称单数:valves

英语解释：

名词 valve:

a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through itdevice in a brass wind instrument for varying the length of the air column to alter the pitch of a tonecontrol consisting of a mechanical device for controlling the flow of a fluid