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Terms for subject Environment (7358 entries)
地震活动 seismic activity (The phenomenon of Earth movements)
地震的海浪 seismic sea wave (A large seismically generated sea wave which is capable of considerable destruction in certain coastal areas, especially where submarine earthquakes occur. Although in the open ocean the wave height may be less than one meter it steepens to hights of 15 metres or more on entering shallow coastal water. The wavelength in the open ocean is of the order of 100 to 150 km and the rate of travel of a seismic sea wave is between 640 and 960 km/h)
地震监测 seismic monitoring (The gathering of seismic data from an area)
地震工程 seismic engineering (The study of the behavior of foundations and structures relative to seismic ground motion, and the attempt to mitigate the effect of earthquakes on structures)
地下处理 underground disposal (The discharge, dumping or emission of wastes below the surface of the soil)
地下水 water table (Water that occupies pores, cavities, cracks and other spaces in the crustal rocks. It includes water precipitated from the atmosphere which has percolated through the soil, water that has risen from deep magmatic sources liberated during igneous activity and fossil water retained in sedimentary rocks since their formation. The presence of groundwater is necessary for virtually all weathering processes to operate. Phreatic water is synonymous with groundwater and is the most important source of any water supply)
地下水 groundwater (Water that occupies pores and crevices in rock and soil, below the surface and above a layer of impermeable material. It is free to move gravitationally, either downwards towards the impermeable layer or by following a gradient)
地下水 Ground Water
地下水水质 groundwater quality (Groundwater accounts for over 95% of the earth's useable fresh-water resources; over half the world's population depends on groundwater for drinking-water supplies. This invisible resource is vulnerable to pollution and over-exploitation. Effective conservation of groundwater supplies requires the integration of land-use and water management)
地下水损害危机 groundwater endangering (Threat to the quality and quantity of groundwater by activities related to the use of land. As some activities (e.g. landfill) present a particular risk of pollution, the closer an activity is to a well or borehole, the greater the risk of the pumped water being polluted. The type of soil, the geology, the rainfall and the amount of water pumped out of the ground must all be taken into consideration)
地下水污染 groundwater pollution (Contamination of any water found under the earth's surface by any leaching pollutants, such as inorganic compounds (chlorides, nitrates, heavy metals, etc.), synthetic organic chemicals (pesticides, fertilizers, etc.) and pathogens (bacteria, parasites, etc.))
地下水提取 groundwater extraction (The process, deliberate or inadvertent, of extracting ground water from a source at a rate so in excess of the replenishment that the ground water level declines persistently, threatening exhaustion of the supply or at least a decline of pumping levels to uneconomic depths)
地下水保护 water table protection (Water table is inherently susceptible to contamination from landuse activities. Remediation is very expensive and often impractical. Prevention of contamination is therefore critical in effective groundwater management)
地下水保护 groundwater protection (Precautionary actions, procedures or installations undertaken to prevent or reduce harm to the environmental integrity of fresh water found beneath the earth's surface, usually in aquifers, which supply wells and springs)
地下饮用水源 underground sources of drinking water
地下垃圾站 underground dump (Any subterranean or below-ground site in which solid, or other, waste is deposited without environmental controls)
地下排水 subsoil drainage (The removal of surplus water from within the soil by natural or artificial means, such as by drains placed below the surface to lower the water table below the root zone)
地下储存 underground storage (Storage located underground designed to hold gasoline or other petroleum products or chemical solutions)
地下铁路 underground railway (An electric passenger railway operated in underground tunnels)
地下采石场 underground quarry (Quarry located below the surface of the earth)