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Terms for subject Environment (7397 entries)
水危害 water endangering (Can be caused by a variety of means, e.g. farm pollution from animal wastes and silage liquor (liquors from green leaf cattle food which has had molasses added to promote fermentation and preservation; they are highly polluting and can be a seasonal cause of fish deaths in small streams), leachate from landfill sites, and spoil heaps, solvent discharge to sewers or to land and inadequate sewage treatment works)
水味 water taste (Taste in water can be caused by foreign matter, such as organic compounds, inorganic salts or dissolved gases. These materials may come from domestic, agricultural or natural sources. Some substances found naturally in groundwater, while not necessarily harmful, may impart a disagreeable taste or undesirable property to the water. Magnesium sulphate, sodium sulphate, and sodium chloride are but a few of these. Acceptable waters should be free from any objectionable taste at point of use)
水的腐蚀性 water corrosivity (Complex series of reactions between the water and metal surfaces and materials in which the water is stored or transported. The corrosion process is an oxidation/reduction reaction that returns refined or processed metal to their more stable ore state. With respect to the corrosion potential of drinking water, the primary concerns include the potential presence of toxic metals , such as lead and copper)
水的污水生物分级 saprobic water classification
水的恢复 restoration of water (Any treatment process in which contaminated water is cleansed or corrected, particularly by use of a pump-and-treat approach)
水的硬度 water hardness (The amount of calcium and magnesium salts dissolved in water)
水文气象学 hydrometeorology (That part of meteorology of direct concern to hydrologic problems, particularly to flood control, hydroelectric power, irrigation, and similar fields of engineering and water resource)
水文气象预报中心 Hydrometeorological Prediction Center
水文地质学 hydrogeology (The science dealing with the occurrence of surface and ground water, its utilization, and its functions in modifying the earth, primarily by erosion and deposition)
水文流量 hydrologic flow (The characteristic behaviour and the total quantity of water involved in a drainage basin, determined by measuring such quantities as rainfall, surface and subsurface storage and flow, and evapotranspiration)
水文流域 hydrographic basin (1. The drainage basin of a stream. 2. An area occupied by a lake and its drainage basin)
水文学 hydrology (The science that treats the occurrence, circulation, distribution, and properties of the waters of the earth, and their reaction with the environment)
水文平衡 hydrologic balance (An accounting of the inflow to, outflow from, and storage in a hydrologic unit such as a drainage basin, aquifer, soil zone, lake or reservoir; the relationship between evaporation, precipitation, runoff, and the change in water storage)
水文灾害 hydrologic disaster (Violent, sudden and destructive change either in the quality of the earth's water or in the distribution or movement of water on land, below the surface or in the atmosphere)
水文循环 hydrologic cycle (The movement of water between the oceans, ground surface and atmosphere by evaporation, precipitation and the activity of living organisms, as one of the mayor biogeochemical cycles. Each day water evaporates from the oceans and is carried in the air from the sea over the land, which receives it as precipitation, and finally returns from the land to the sea through rivers, thus completing the cycle)
水再生 water regeneration (A process in which naturally occurring microorganisms, plants, trees or geophysical processes break down, degrade or filter out hazardous substances or pollutants from a body of water, cleansing and treating contaminated water without human intervention)
水再利用 water reuse (Use of process wastewater or treatment facility effluent in a different manufacturing process)
水排放 emission to water (The discharge of solid, liquid or gaseous pollutants or contaminants into a body of water)
水库 water reservoir (Artificial or natural area of water, used for storing water for domestic or industrial use)
水库 reservoir (An artificial or natural storage place for water, such as a lake or pond, from which the water may be withdrawn as for irrigation, municipal water supply, or flood control)