复数：river beds
n.a channel occupied (or formerly occupied) by a river
同义词：riverbedriver bottom
River bed gravels: sampling and analysis
River energy budgets with special reference to river bed processes
Causes of river bed degradation
River bed gravel: sampling and analysis
Developments in monitoring and modelling small‐scale river bed topography
Studies in the Ecology of Rivers. II. The Microflora of Rivers with Special Reference to the Algae on the River Bed
Modeling river bed morphology, roughness, and surface sedimentology using high resolution terrestrial laser scanning
Characterization of the Structure of River-Bed Gravels Using Two-Dimensional Fractal Analysis
River bed carbon and nitrogen cycling: state of play and some new directions
On river bed degradation with armouring
