基本解释[土木建築工程]上覆含水層英汉例句雙語例句When confined aquifer under the bottom of the pit, the foundation excavation will reduce the thickness of overlying impermeable layer.在基坑底部以下存在承壓水層的情況下，基坑開挖減少含水層上覆不透水層的厚度。overlying aquifer更多例句专业释义土木建築工程上覆含水層