English to French translations [PRO] Tech/Engineering - Environment & Ecology / geology
English term or phrase:at least several orders of magnitude of the grain size
Displacements of individual stones are of the order of several times the stone diameter, while scour depths/lengths in sediments are at least several orders of magnitude of the grain size.
Deux interprétations différentes me viennent pour la fin de la phrase (que je ne vous dirai pas, pour ne pas vous influencer!) Qu'en pensez vous ?
The translation workplace 
peer agreement (net): +1