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。
Of all components of water balance in farmlands, evapotranspiration, capillary rise from a water table and deep percolation are difficult to determine.
土壤粘附强度主要由毛细管作用力和界面水膜粘滞力构成，固体表面性质对其产生影响。
The soil adhesive strength is mainly composed of capillary pressure and viscous resistance of the water film, which are affected by the nature of solid surface.
土壤粘附强度主要由毛细管作用力和界面水膜粘滞力构成，固体表面性质对其产生影响。
The soil adhesive strength is mainly composed of capillary pressure and viscous resistance of the water film, which are affected by the nature of solid surface.
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