Sand wave movement is an important form of sediment movement for alluvial rivers and has a great effect on stream resistance.
沙波运动是冲积河流泥沙运动的一种重要形式。沙波的消长对河道水流的阻力损失有很大的影响。
2
The sedimentary facies can be classified into alluvial fan, fan delta, lake, stream and swamp.
沉积相可分冲积扇相、扇三角洲相、湖泊相、河流相和沼泽相。
3
The major sedimentary facies were alluvial fan facies and fan delta facies in the west, and stream delta and braided delta in the east, with a lacustrine facies in the centre of the fault basin.