tube的英文释义Noun 1. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
2. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
3. a hollow cylindrical shape
4. (anatomy) any hollow cylindrical body structure
5. electric underground railway
Verb 1. provide with a tube or insert a tube into
2. convey in a tube;
inside Paris, they used to tube mail3. ride or float on an inflated tube;
We tubed down the river on a hot summer day4. place or enclose in a tube