underground bed or layer yielding ground water for wells and springs etc
造句
The transboundary aquifers across provinces of China are also analyzed. 對我國跨省界含水層進行了初步分析。
Aquifers below the ice would provide a habitat for creatures or a venue for the hydrogeochemical production of methane. 冰底下的含水層提供了生物的棲息地，或是提供水文地球化學過程得以發生的地點。