1) труба; трубка; гильза
2) канал замкнутого профиля
3) тоннель
- aerofin tube
- dall tube
- diffuser tube
- discharging tube
- displacement tube
- dredging tube
- finned tube
- heat tube
- immersed tube
- level tube
- luminous tube
- objective tube
- Pitot tube
- pivot tube
- sample tube
- seamless tube
- smoke tube
- spiral-fin tube
- spiral lockseam tube
- thin-shell tube
- underwater tube
- vacuum sampling tube
- Venturi tube
- vortex tube