An aquitard stores water and transmits enough water to be regionally significant but not enough to supply individual wells . 弱透水层存水且区域性地传导大量水,但不能充分供给每个井。
In this thesis the geological and hydrogeological conditions of the area are systematically analyzed , and , from top to bottom the primary exploitation layers are divided into five layers in order : the second confined aquifer , the second aquitard , the third confined aquifer , the third aquitard , and the forth confined aquifer 本论文在系统分析该地区水文地质条件的基础上,将研究区主要开采层划分为五层,由上到下依次为:第一层为第承压含水层,第二层为第承压弱含水层,第三层为第承压含水层,第四层为第承压弱含水层,第五层为第承压含水层。