Researcher preparing for the stress testing of a concrete block. The metal plates apply a precise amount of pressure, and the point at which the concrete breaks reveals information about its strength. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Digi_dog |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Länge: | 12 Sekunden |
Seitenverhältnis: | 16:9 |
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