tube

noun

1. an electric railway operating below the surface of the ground (usually in a city)

e.g. in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'

Synonym: metroundergroundsubway systemsubway

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

Synonym: tubing

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

Synonym: vacuum tubethermionic vacuum tubethermionic tubeelectron tubethermionic valve

4. (anatomy) any hollow cylindrical body structure

Synonym: tube-shaped structure

5. a hollow cylindrical shape

Synonym: pipe

verb

1. place or enclose in a tube

2. ride or float on an inflated tube

e.g. We tubed down the river on a hot summer day

3. convey in a tube

e.g. inside Paris, they used to tube mail

4. provide with a tube or insert a tube into

1. 管子;管;管状物
A tube is a long hollow object that is usually round, like a pipe.

e.g. He is fed by a tube that enters his nose.
他靠鼻饲管进食。
e.g. ...a cardboard tube.
纸卷芯

2. (内盛膏状物等的)管状容器
A tube of something such as paste is a long, thin container which you squeeze in order to force the paste out.

tube什么意思

e.g. ...a tube of toothpaste.
一管牙膏
e.g. ...a small tube of moisturizer.
一小管保湿液

3. 管状器官;管;道
Some long, thin, hollow parts in your body are referred to as tubes .

tube什么意思

e.g. The lungs are in fact constructed of thousands of tiny tubes.
肺实际上由上千条细微的气管构成。

4. (伦敦的)地铁
The tube is the underground railway system in London.

tube

e.g. I took the tube then the train and came straight here...
我先乘地铁，然后坐火车直奔这里。
e.g. He travelled by tube.
他乘地铁旅行。

5. 电视机
You can refer to the television as the tube .

e.g. The only baseball he saw was on the tube.
他看过的唯一一场棒球赛是在电视上看的。

6. （公司、经济、机构）完全垮掉，彻底崩溃，告吹
a business, economy, or institution goes down the tubes or goes down the tube, it fails or collapses completely.

e.g. The country was going down the tubes economically...
该国经济正在彻底崩溃。
e.g. When I was dieting, that was when my social life started going down the tube.
我节食的时候，也就切断了一切社交生活。

7. see also: bronchial tube;cathode-ray tube;fallopian tube;inner tube;test tube

1. tube的反义词

1. 管：形状包括锭(Ingot), 板(Plate), 片(Sheet), 箔(Foil), 管(Tube), 线(Wire), 棒(Bar), 及压模成形(Molding)之粉体物件. 熔炼: 真空感应重熔炉(VIM), 真空电弧重熔炉(VAR), 电子束重熔炉(EBM)

2. tube的反义词

2. 真空管：现在的市售音箱(Amp)有三大主流, 真空管(Tube), 电晶体(Solid State或称Transistor), 和数位模拟式(Modeling, 例如Line6产品). 真空管因为里面有点电流阻力, 所以吉它讯号经过管子后, 伏特数(Voltage)会稍被减低,

3. 内胎：答案是:内胎(tube),因为除非外胎(tyre)磨损严重,不然不会随便换掉,因为一个好的外胎都要一千元以上....