查询词典 erosion cycle

Firstly, vegetation degradation enlarges bareness of ground surface, which enhance wind erosion and dry blowing, make the soiltexture coursing, increase the soil bulk volume and low down the retentiveness of water.

首先，植被退化，增大了地表裸露度，风蚀与风选作用加强，使土壤质地粗化、容重增加，持水性能降低。

Because of the activity of mankind that do to the transference and retroflexion of grains of soil, the intensity of soil erosion and nutrient losing has been enhanced, whether it is in the flat, farmland or woodland.

2~(137)Cs在土壤剖面中随深度的增加而呈下降趋势，在非耕作土和未扰动的土壤主要分布在土壤剖面的上部，并富集在土壤表层之间。

Soil degradation caused by erosion and loss of vegetation is the principal problem to sustainable ecology in the xerothermic regions. Revegetation is considered as the essential process of soil restoration.

植被散失和水土流失导致的土壤退化是影响干热区生态可持续发展的主要问题，植被恢复是修复退化土壤的基本过程。

Adopting gabions set in the bottom of the revetment works to protect engineering from erosion is necessary.

试验数据分析表明裹头工程根部设置铅丝石笼防护带，对保护工程、减轻边岸冲刷非常重要。

The experimental results of erosion under different rib geometry and ribbing form are in good agreement with computational ones.

首次对设置不同形状、不同排列方式抗磨肋条的壁面进行颗粒两相流的冲击磨损试验，证实了数值计算与理论分析所获结果的准确性。

The velocity of flow on soil surface can be measured and may be used to explain the mechanism of rill erosion.

细沟流中水流速度沿流线方向的垂直分布是一个非常困难的问题。要研究这个问

The results of these experiments indicate the increasing trend of rill erosion quantity with slope gradient and flow discharge.

试验结果反映细沟侵蚀量基本随坡度和流量的增加而增加的趋势。

This model introduces a concept of unsaturated sediment transport, reflecting the variation of rill erosion along the distance.

该模型引入了非饱和输沙的概念，能够反映沿程细沟侵蚀的变化规律。

The conclusion of the function of riprap layer is enforce the erosion resistance of slope is set up by the safety factor comparison between natural slope and riprap slope. At last, appraise the bank revetment project in Sima bend by study on incipient velocity of riprap.

通过抛石前后安全系数的对比得出抛石层的主要作用为增强岸坡的抗冲制能力的结论，最后通过对抛石起动流速的研究，对嘶马岸段的抛石护岸工程进行了评价。

Riprap-- Boulders or loose stones placed in a hollowed out culvert area protect soil underneath from erosion, while slowing water flow.

抛石-大石或放置在松散石头掏空涵洞区保护土壤免受侵蚀下，同时减缓水流。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。