An active measure for ground subsidence control is to move the exploited horizon upward to shallow area and make it close to the recharge and discharge area of groundwater 控制地面沉降的一个积极措施是将开采层位上移至浅层，使其接近地下水的补给区和排泄区。
2.
The misunderstood " dupuit stable well flow model " ( " model of radius of influence " ) ii the main " theoretical " basis of the unreasonable selection of exploited horizon of groundwater 被误解了的“裘布依稳定井流模型” （ “影响半径模型” ）是不合理选择地下水开采层位的主要“理论”依据。
3.
The specific capacity obtained from pumping teat generally does not reflect the water abundance of aquifer and so cannot be taken as the basis for the selection of the exploited horizon of groundwater 用抽水试验获得的单位涌水量一般不反映含水层的富水性，不宜依它来选择地下水的开采层位。
