tube
单词辨析：
普通用词，泛指输送液体或气体的管子。
He has ordered some plastic pipes to decorate his new house.
为了装修新房子，他已经订购了一些塑料管子。
There was something wrong with the hot water pipe.
热水管出了些问题。
土木工程词汇，指水、气等通过的管道或保护电线的导线管等。
Be careful while digging! There is a conduit underneath the house.
挖的时候小心点！这座房子下面埋有管道。
Where did you buy these conduits that enclose insulated electric wires?
你在哪里买的这些包电线的管子？
指金属、玻璃、橡胶等制成的输送液体或气体的管子。
The professor had the glass tube filled with hydrogen.
教授将一个玻璃管充满氢气。
Please help me buy a tube of toothpaste on your way back.
请在回来的路上帮我买一管牙膏。
相关例句：
The port side is the vent valve and tubing, and the starboard side is the blow tube.
港口方面是发泄阀和油管，和右舷侧是打击管。
The researchers demonstrated this using DNA in a test tube.
研究人员在试管中演示了DNA编辑这一操作过程。
That's Warwick Road, just opposite Earls Court tube station.
那是沃里克路，就在伯爵宫地铁站对面。
He travelled by tube.
他乘地铁旅行。
Introduce the tube into that conduit, please.
请把电线插入那个导管内。
The oil rushes up the tube and spouts up as a gusher.
石油会沿着钢管上涌，如同自喷井那样喷射出来。