A close-up of a hydrometer in a solution of salt and water. A hydrometer is an instrument that measures the specific gravity (relative density) of a liquid | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Edward |
Taille de l’image : | 3000 px × 4500 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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