非承压含水层是两种主要含水层之一。
One of the two main types of aquifer is the unconfined aquifer.
本文针对“二元结构”含水层研究了在定流量抽水下非完整井非稳定流情况下的计算方法。
The general drawdown equation and its particular cases for a partially penetrating well discharging at a constant rate from an aquifer-aquitard system are derived and investigated.
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。
An undisturbed soil column and the water used in the test were taken from the aquifer in the Facility.
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