The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation.
原状土的饱和导水率能反映田间的实际情况，对研究土壤水分平衡和水土保持有极其重要的意义。
2
An undisturbed soil column and the water used in the test were taken from the aquifer in the Facility.
实验用的非扰动原状土柱取自地下研究设施内的含水层，实验用水为地下水。
3
Swimming in likes or streams is OK in most instances but in desert areas, leave scarce water holes undisturbed and unpolluted so animals may drink from them.