查询词典 runoff

Roof gutters and downspouts-- Gutters collect roof runoff and channel it to downspouts.

屋顶排水沟和落水管-排水沟收集屋面径流和渠道给落水管。

Control runoff from manure stockpiles or feedlots.

由粪便的储藏或饲育场来控制流量。

Protecting fertilizer and preventing pollution Making the leakage losses of soil nutrients reduce more than 85%, improving the utilization efficiency of fertilizers; reducing the pesticide content in the runoff, preventing the pollution of groundwater and river and lake water.

保肥防污染，使土壤养分的渗漏损失减少95%以上，提高肥料的利用率；降低泾水中的农药含量，防止地下水和河湖水体污染。

Prediction of sediment concentration is investigated. Taking Toudaoguai hydrological station as an example, the factors affecting the sediment concentration in the non-freeze-up and freeze-up runoff models are analyzed and the neural network models of sediment concentration prediction are established.

3以黄河头道拐水文站为例对水流日均含沙量的预测进行了研究，在对黄河非凌汛期和凌汛期等不同径流模式下水流含沙量的影响因子进行分析的基础上，分别建立了各径流模式下的水流含沙量的神经网络预测模型。

In recent years, annual average runoff has shown a decreasing tendency because of a series of ecological and environmental problems, such as soil degradation, climate warming, arid acuity, glacier shrink, lake water table descend and so on.

降雨、蒸发、下渗和径流过程是水文循环研究中的主要方向，而径流变化又是水文循环研究中最敏感因素。

The grass hedgerows could effectively reduce the runoff and soil loss of slope land.

结论］草篱能有效地减少坡耕地地表径流和土壤侵蚀量。

The rainning shower is more in the type area of hot-dry river valley. The runoff rate on the natural slope is more than 20%. The efficiency of water-harvesting on the natural slope as catchment section is fine in the technique of micro-water-harvesting- system.

干热河谷典型地段的降雨以阵雨形式为主，自然坡面的产流率可高达20%以上，微区域集水系统利用自然坡面作为集水区能起到良好的集水效果。

As the surface altitude increases, the water level and the imbedded water level decrease, and is lowest in Betula ovilifolia－Carex schmidtii－Sphagnum palustre community, which may be firstly caused by the distribution of the hummocks of Sphagnum palustre, which is powerful in holding water, and this has cushion function on the change of water level; On the other hand, it may be caused by it's position near the hill, the runoff from the hill may supply the district, so that the change extent of water level at a certain extent minishes.

随着地表相对高程的增加，水位变化幅度逐渐变小，在油桦－臌囊苔草群落中最小，这一方面可能与泥炭藓丘的分布有关，泥炭藓具有较强的饱水和持水能力，对水位的变化具有一定的缓冲作用；另一方面是由于该区靠近山地，山坡上形成的坡面径流可能对该区域有所补给，这也在一定程度上减小了水位的变化幅度。

The paper investigates the interaction between variation of precipitation landscape patterns and runoff, and results show that: 1Precipitation in upper-middle main Jinghe watershed over 40 years descends little, and the isograms of inclination rate of precipitation are between -4.9mm/10a to -11.3mm/10a.

本文研究泾河流域降雨-景观-径流变化的相互作用，结果表明：①泾河流域中上游主流域40多年来的降水具有微弱下降趋势，降雨倾向率为-4.9mm/10～-11.3mm/10年；泾河流域马莲河分流域，年降雨量表现为不变或微弱下降；②泾河流域1986年～2000年15年之间，景观结构变化不大，一直以草地景观和耕地景观为主。

As a result silver chai n forest land has a better capacity in soil and water conservation than naked l and. It can reduce surface runoff than naked land when rainfall changes around 3 0mm. In 2000, 179.42 g/m~2 soil were lossed in silver chain forest land, 980.1 g/m~2 in naked land on the contrary.

结果表明，与裸地相比刺槐林有很好的水土保持作用，能明显地减少地表径流和泥沙侵蚀。3 0 mm左右降雨量，有林地减少地表径流的能力是无林地的 3倍以上。2 0 0 0年径流观测场有林地土壤流失量为 179.4 2 g/ m2 ，无林地土壤流失量为

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。