aquifer是什么意思

双语用例

• Then the water composition approximately oscillates at each point of the aquifer in phase with the water velocity.

• The efficiency of the mechanism may be one of the selection factors at some stages of the chemical evolution in the aquifer.

• The alternating water flow produces temperature and water composition oscillations in the aquifer.

• A watershed development program aiming at recharging aquifers, facilitating sustainable groundwater use, is the focus of this study.

• According to the mechanism, the particles in an aquifer are moved by an alternating flow of ground water.

• The proposed mechanism permits the concentration of particles in some regions of the aquifer (in so-called attractors).

• Starting in the late nineteenth century, farmers began using groundwater from this extensive aquifer to supplement the highly variable surface supplies.

• Let us assume that over a semiperiod the particles travel a small distance compared with the size of the aquifer.