1 Resultaten gevonden voor "Bestand:Fly_Ash_FHWA_dot_gov.jpg".

Bestand:Fly Ash FHWA dot gov.jpg

DescriptionFly Ash FHWA dot gov.jpg English: Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification. Fly ash is...

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