پمپ وکیوم آبی تولیدی و ساخت انواع پمپ وکیوم آبی
What is vacuum techniques?
The vacuum techniques are needed, for example, to eliminate gas convection in cryostats, to open thermal switches, to decrease the pressure above the surface of a liquid to lower its temperature, to circulate helium in dilution refrigerators, and for the purpose of leak detection.