河床演变
riverbed evolvement process
river bed evolution
river evolution
riverbed evolution
bed evolution
evolution of riverbed
Evolution of river bed
river bed development
riverbed development
riverbed evolvement
bed development
river channel process
river bed deformation
fluvial processes
channel evolution
River-bed evolution
fluvial process
bed developement
Antidumping accounting
alluvial process
riverbed deformation
estuary channel processes
scour and fi ll
fluvial geomorphology
sediment movement
evolution
河床特征
characteristic of riverbed
河床稳定
stability of the riverbed
riverbed stability