例句與造句

1. These sites all contain fluvial landforms indicating that abundant water was once present.
2. Some geomorphic examples of fluvial landforms are alluvial fans, oxbow lakes, and fluvial terraces.
3. Three kinds of streams are formed by headward erosion : " insequent streams ", " subsequent streams ", and " obsequent and resequent streams " ( " See Fluvial landforms of streams " . ) "'Insequent streams "'form by random headward erosion, usually from sheetflow of water over the landform surface.
4. The " Glossary of Landform and Geologic Terms ", maintained by the United States'National Cooperative Soil Survey, defines an " alluvial plain " as " a large assemblage of fluvial landforms ( braided streams, terraces, etc ., ) that form low gradient, regional ramps along the flanks of mountains and extend great distances from their sources ( e . g ., High Plains of North America ) " Use of " alluvial plain " as a general, informal term for a broad flood plain or a low-gradient delta is explicitly discouraged.
5. It's difficult to find fluvial landforms in a sentence. 用fluvial landforms造句挺難的