A bubble level indicates whether a surface is level,(horizontal) or not. Shown here,(from above),is a level whose top surface is slightly curved. It is partially filled with a liquid,leaving a visible bubble. When the level is placed on a horizontal surface the bubble is centered between markings | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Giphotostock |
Taille de l’image : | 4500 px × 3005 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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