n. 管, 软管, 隧道

vt. 把...装管, 使通过管子

[计] 管子

n. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

n. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

n. (anatomy) any hollow cylindrical body structure

v. provide with a tube or insert a tube into