soil water percolation 土壤水分渗漏
water contour percolation 水分水平渗漏
soil water percolation rate [土壤] 土壤水渗漏率
Water percolation test 水渗流实验
Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization.
不可渗透的粘土限制了水和黄腐酸的向下渗透，从而减少了化学风化和土壤灰化作用。
The results show that under residual water conditions, gas percolation with low speed in water wet low permeability reservoirs has obvious characteristics of non Darcy flow.
研究成果表明：在残余水状态下，亲水低渗储层岩石中的气体低速渗流具有明显的非达西渗流特征；
Of all components of water balance in farmlands, evapotranspiration, capillary rise from a water table and deep percolation are difficult to determine.
在农田水分平衡中，较难测定的要素有农田蒸腾蒸发量、地下水毛细上升量和土壤水渗漏量。
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