probeta 179
test tube . ( For testing ). 1. f. tube of glass, on foot or without him, closed at one end and intended to contain liquids or gases. 2. f. vessel fightings and of little substance, used by photographers in their operations. 3. f. mercury, little height gauge to get to know the degree of enrarecimiento of the air in pneumatic machine. 4. f. machine to test the quality and violence of the gunpowder plot. 5. f. sample of any substance or material for p steal their elasticity, resistance, etc. test tube graduate. 1. f. That has signals for measuring volumes. ? V. child test tube