例文
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- The water most likely came from deep aquifers a couple of miles below the surface.
- They also include deep aquifers at a depth of.
- Unlike many states, Maine does not have large, deep aquifers to draw on in times of drought.
- Deep aquifers in arid areas have long been water sources for irrigation ( see Ogallala below ).
- Under the entire valley is a deep aquifer in the limestone floor, containing water permeating downward through the horsts.