This refers to the combination of civil engineering design principles with plants and natural materials, such as rocks, which control erosion and slow-down the flow of water.
它既是将土木工程设计原理与植物和自然材料，如能够防止侵蚀并减缓水流的石材相结合。
Grass roots reinforce the soil strength withstanding water flow flush and to effectively reduce soil erosion.
草地根系可以增强土壤抵抗水流冲刷的能力，有效地减少土壤侵蚀。
Water flow on slope makes the soil depth uneven at different places, forms the polygenetic soil profiles, and exposes the buried soils by erosion.
坡面水流使坡地土壤厚薄不均，或形成异源剖面，并可使埋藏土壤因冲刷而出露。
Using data of 155 sediment detentionbarriers which check all oncoming sediment and water flow, a erosion model with different weight is constructed.
利用黄河中游155个“闷葫芦”淤地坝沉积泥沙资料和相关侵蚀因子建立了侵蚀变权模型，用该模型计算了每个图斑的侵蚀量。
The slope runoff formed by soil erosion is two-phase flow constituted by water and sand.
土壤侵蚀所形成的坡面径流是水沙液固两相流。
Because of the high water head and high flow speed, the aeration for preventing cavitation erosion becomes more and more important.
由于水头高，流速大，明流泄洪洞的掺气减蚀越来越受到重视。
Soil erosion that on the other hand the village life and agriculture produce to be short of water seriously, on the other hand the mightiness again make in large quantity watch flow run off.
一方面农村生活及农业生产严重缺水，另一方面强烈的水土流失又使得大量地表径流流失。
Through the establishment of two-dimensional mathematical model of flow and sediment, calculate and analyse the effects on river water level, flow field and riverbed erosion and deposition.
通过建立二维水沙数学模型，计算分析对河道水位、流场及河床冲淤的影响。
Through the establishment of two-dimensional mathematical model of flow and sediment, calculate and analyse the effects on river water level, flow field and riverbed erosion and deposition.
通过建立二维水沙数学模型，计算分析对河道水位、流场及河床冲淤的影响。
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