冲刷沟

The flow velocity increased and reached the maximum on the hillslope within a three or four meters' downslope distance, and the flow velocities of each segment almost all decreased with increasing scouring duration in the scouring experiments.

坡面流流速在坡面的发展有一个坡长范围，试验中，在距坡顶3～4 m处，坡面流流速达到最大；坡面、沟坡各断面流速基本上都随着放水冲刷时间的延长而呈下降趋势。

In the experi- ment and practice m the zhongwei North Main Canal of the Hetao Irrigation District, a cheap and quick functioned slope protection method of soil and grass mixture for tree planting has been searched for de- sign and construction of irrigation canal and drainage in the desert region.

河套灌区在中卫北干渠进行了试验，在沙漠建渠道，用人工和植物固沙，沙漠区排水沟道的设计则充分考虑水流冲刷，对沟道防坍塌摸索了一条花钱少、见效快的草上植柳护坡办法，并在灌区内植树造林以固沙。

Runoff experiments were conducted on the loess slope to determine the hydrodynamic characteristics of the rills.

本文通过径流冲刷试验，对黄土坡面形成的细沟的水力学特征进行了试验研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。