| urban structure (The built-up components, the street system and the facilities which make up an urban unit) |
城市结构 |
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| urban study (The study and theory of building and other physical needs in cities or predominantly urban cultures) |
城市研究 |
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| urban traffic (Movements of vehicles and people within a city) |
城市交通 |
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| urban wastewater (The liquid wastes deriving from domestic, commercial and industrial activities of an urban settlement) |
城市污水 |
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| urban water (Water destined for private and public use in a town) |
城市用水 |
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| urban water supply (The distribution of water, including collection, treatment and storage, for use in a town, city or municipal area, and used generally for domestic and industrial needs) |
城市供水 |
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| urbanization (The state of being or becoming a community with urban characteristics) |
城市化 |
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| ursid (A family of mammals in the order Carnivora including the bears and their allies) |
熊科动物 |
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| US Environmental Science Services Administration |
美国环境科学服务局 |
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| use of leisure time (Making use of free time to carry out recreational activities) |
闲暇时间的利用 |
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| use of waste as energy source |
废料作为能源资源的利用 |
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| use of waste as material |
废料作为原料的利用 |
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| use value |
利用价值 |
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| Used Oil Recycling Act |
废油回收再生法案 |
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| used water (Wastewater or utilized water from a home, community, farm or industry, which is often discharged after utilization) |
已用水 |
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| user advantage |
用户优势 |
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| users network for applied modeling of air pollution |
空气污染应用模拟用户网络 |
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| utilisation of calorific value (Calorific value is the heat per unit mass produced by complete combustion of a given substance. Calorific values are used to express the energy values of fuels; usually these are expressed in megajoules per kilogram. They are also used to measure the energy content of foodstuffs; i.e. the energy produced when the food is oxidized in the body. The units here are kilojoules per gram. Calorific values are measured using a bomb calorimeter (apparatus consisting of a strong container in which the sample is sealed with excess oxygen and ignited electrically. The heat of combustion at constant volume can be calculated from the resulting rise in temperature)) |
热值的利用 |
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| utilisation of pesticides (Use of chemical or biological substances to deliberately kill unwanted plants or animals) |
杀虫剂的利用 |
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| utility water |
公用水源 |
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