In both conditions, the peak of preferential flow appeared earlier than that of infiltrated soil water flow.

在两种情况下，优先流的峰值都先于土壤渗流。

youdao

According the soil water flow condition, four formulas for calculating the Parameters of dispersion have been acheived.

对四种不同水流及初始盐分浓度条件下的弥散系数计算给出了具体公式和试验方法。

youdao

The field tests are carried out to study the characteristics of heterogeneous soil water flow in tilled land and fallow field respectively.

通过田间试验研究探讨了土壤水非均匀流动特性及其描述方法。

youdao

Indiscriminate logging and deforestation have caused the exposed soil to run off into the river, silting it up and reducing its water-flow capacity.

CNN: FIGHTING FLOODS

Now, even though refined plans show an alternate route, environmentalists worry that if the expected 500, 000 to 700, 000 barrels of crude oil flow through the pipeline each day, leaks could contaminate the water and soil.

CNN: STORY HIGHLIGHTS