古地名。春秋宋地，在今河南宁陵东北。《左传》成公十六年（公元前575年）：晋会诸侯于沙随。即此。
试验发现推移质泥沙随水流绕过圆柱体时，将在圆柱周围的床面上形成一个无沙区。
When the bed load round the cylinder with water flow, a region of non sediment's moving will be formed in the bed layer near the cylinder.
提出了一种计算推移质输沙率的方法及公式，该公式表明，在水流强度一定时，输沙率并非为一个常量，而是随颗粒在床面的相对暴露度而变。
The formula shows the transport rate is not a constant but varies with the relative exposure degree of particles that lying on riverbed when the flow intensity is at fixed value.
坡面水流含沙量对坡面产沙有一定的影响，随坡长越大影响力越小。
The sand content in the water flux affects the down stream sand and with less impact when the slope is long.
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