Vacuum gauge. A vacuum gauge, attached to a vacuum pump, shows zero pressure difference from the atmospheric pressure. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Turtle Rock Scientific |
Taille de l’image : | 5145 px × 3400 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |