| 词汇 | aquifer |
| 释义 | aquifer noun[ C ] geology specializeduk /ˈæk.wɪ.fər/ us /ˈɑːkwə.fɚ/ a layer of rock, sand, or earth that contains water or allows water to pass through it含水土层，地下蓄水层，砂石含水层 Geology - general words Anthropocene anticline apophysis auriferous biozone carboniferous continental plate geologically geomorphic gully erosion henge Holocene Permian petrographic petrographically petrography petrological Precambrian rockfall syncline Examples of aquiferaquifer 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. Geothermometry and chemical and isotopic compositions can be used to assess changes in aquifer status during production. An important example is the extraction (appropriation) of resource units from a renewable resource stock such as fish, rangelands, groundwater aquifers, or forests. The topography and chaotic terrain may favor a hydrothermal aquifer as the original setting where hematite formed. Under such conditions, nitrate can be leached and can contaminate the shallow aquifer which is also a source of drinking water. Irrigators can also get ground water or contingent water rights, which can be used to fill dams or recharge aquifers. These values, however, do not measure the other non-timber benefits of the forest, only its contribution to aquifer recharge. The data may suggest that growing lowland rice during the wet season could reduce the amount of nitrate leached to the shallow aquifer. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withaquiferaquiferThese are words often used in combination with aquifer. Click on a collocation to see more examples of it. aquifer system In the aquifersystem there may be ramifications, water may flow from one aquifer to another. deep aquifer The cooled water from the aquifer would be pumped back into the deepaquifer to close the loop. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. groundwater aquifer Climate change, global resources, river quality and groundwateraquifer quality are major challenges which threaten our common future. From Europarl Parallel Corpus - English These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with aquifer |
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