valve的中文意思、音标与词形变化

n. 活瓣, 阀, 活门 v. 装阀, 用阀调节

n. a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it n. device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone n. control consisting of a mechanical device for controlling the flow of a fluid n. the entire one-piece shell of a snail and certain other molluscs