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.
通过泥沙模型试验研究，分析不同入库水沙条件下进入取水口内水流的含沙量和颗粒级配，水库对泥沙的沉降率。
By the experiment of sand model, an investigation of silt content, rank of silt grain and silt deposition rate under different conditions of water and silt have been obtained.
试验结果表明：浑水水流的单宽流量大小、含沙量的多少以及含沙粒径的变化都对冲刷坑深度有一定的影响。
The result indicates that the discharge per unit width, the sediment concentration, the grain size of sand influences the depth of scour hole.
介绍了旋转环形水槽的结构和工作原理，提出了削弱环形水流离心力的方法，通过环形水槽中周期往复流泥沙运动试验得出水体含沙量与床面剪切力和水体挟沙力之间的关系。
The method of weakening centrifugal force in the rotary ring flume is proposed and sediment movement under the effect of periodic reciprocating current is tested in the ring flume.
建坝后水库下泄水流挟带的床沙质含沙量减少，坝下游河床出现冲刷。
The released flow from reservoirs carries less sediment load of bed material than pre? dam periods.
本文所提出的超声测沙方法的原理，是根据超声波在含沙水流中传播时在悬沙上产生的反射波的数目来测量含沙量的大小。
In this paper, a new ultrasonic method of measuring the amount of sand contained in fluid or in sediment model has been introduced.
节水灌溉对水源水质要求很高，尤其是喷灌、滴灌要求水流不含沙或含沙量很小。
Good quality of the water sources is essential to WS, especially, the sprinkler irrigation and micro-irrigation. It is required that the irrigation water contains no or little sediment.
节水灌溉对水源水质要求很高，尤其是喷灌、滴灌要求水流不含沙或含沙量很小。
Good quality of the water sources is essential to WS, especially, the sprinkler irrigation and micro-irrigation. It is required that the irrigation water contains no or little sediment.
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