“blown sand”造句，怎麼用blown sand造句

1、A hill or ridge of wind-blown sand.

3、Study on laws of wind-blown sand movement and plant function mechanism is an important part of desert research.

2、At present the study of the movement of sands mainly focuses on theoretical analysis of and numerical simulations of blown sand on the flat bed of sand.

4、With the time going on, development pattern of blown sand hazard is that the area-damaged of sand-control system enlarges and the ratio of serious type of sand hazard increases.