test tubes
试管
inner tubes
内胎
plastic tubes
塑料管
A: Where are the test tubes?
A:试管在哪里?
B: They are on the laboratory table.
B:它们在实验室的桌子上。
1) 管道,管状物
2) 地铁(俚语,如伦敦地铁)
3) 导管
1. 管状物
noun
1. hollow cylinders used for conveying liquids or gases
Synonym: pipes, conduits