portugués
valvula termionica catalán
vàlvula 
Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope.
ruso
туба 
An electric railway operating below the surface of the ground (usually in a city)
1
A year later, a second tube was opened to serve downtown Manhattan.
2
John's voice, coming clear as day through the tube of seasoned meat.
3
The diaphragm and the speaking tube were the great sources of error.
4
The tube, N, indicates the level of the liquid in the vessel.
5
With the machine running, add 1 cup water through the feed tube.
6
The question came to him as though through a long, hollow tube.
7
GJ tube patients reported greater gains in QALMS but incurred higher costs.
8
That's about half a million people who use the tube every day.
9
But the medullary tube of the Vertebrates originates in the same way.
10
The tube is taken in the right hand, as shown in Fig.
11
As they went up the mountain the mercury in the tube fell.
12
It also poses major problems for anchoring the tube to the viaducts.
13
Thirty-five percent used enteral access devices to verify initial feeding tube placement.
14
The tube and nail should be inclined as shown in the sketch.
15
The weight of wrought iron in the great tube is 1600 tons.
16
I mounted this in my timber tube; the focus was ten feet.
