| ulei de răcire |
cooling oil (Oil used as a cooling agent, either with forced circulation or with natural circulation) |
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| ulei de santină |
bilge oil (Waste oil that accumulates, usually in small quantities, inside the lower spaces of a ship, just inside the shell plating, and usually mixed with larger quantities of water) |
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| ulei din petrol |
petroleum oil |
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| ulei mineral |
mineral oil (Oil which derives from petroleum and is made up of hydrocarbons) |
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| ulei vegetal |
vegetable oil (An edible, mixed glyceride oil derived from plants (fruit, leaves, and seeds), including cottonseed, linseed, tung, and peanut; used in food oils, shortenings, soaps, and medicine, and as a paint drying oil) |
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| uleiuri uzate |
waste oil (Oil arising as a waste product of the use of oils in a wide range of industrial and commercial activities, such as engineering, power generation and vehicle maintenance and should be properly disposed of, or treated in order to be reused) |
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| ultrafiltrare |
ultrafiltration (Separation of colloidal or very fine solid materials by filtration through microporous or semipermeable mediums) |
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| ultrasunet |
ultrasound (Sound waves having a frequency above about 20,000 hertz) |
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| umezeală |
moisture (1. The water vapour content of the atmosphere, or the total water substances (gaseous, liquid and solid) present in a given volume of air. 2. Water that is dispersed through a gas in the form of water vapour or small droplets, dispersed through a solid, or condensed on the surface of a solid) |
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| umezeala solului |
soil moisture (1. Water stored in soils. 2. One of the most important elements involved in pedological processes and plant growth. There are three basic forms: 1. water adhering in thin films by molecular attraction to the surface of soil particles and not available for plants is termed hygroscopic water. 2. Water forming thicker films and occupying the smaller pore spaces is termed capillary water. Since it is held against the force of gravity it is permanently available for plant growth and it is this type of soil water which contains plant nutrients in solution. 3. Water in excess of hygroscopic and capillary water is termed gravitational water, which is of a transitory nature because it flows away under the influence of gravity. When the excess has drained away the amount of water retained in the soil is termed its field capacity, when some of its pore spaces are still free of water) |
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| umiditate atmosferică |
atmospheric humidity (A measurable quantity of the moisture content found in the earth's atmosphere) |
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| UNCED |
UNCED (United Nations Conference on Environment and Development, Rio de Janeiro, Brazil, 1992) |
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| undă seismică marină |
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) |
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| ungulat |
ungulate (Hoofed mammals, including the Artiodactyla and Perissodactyla) |
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| unitate de reducere a emisiilor |
emission reduction unit |
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| unitate de sortare a deşeurilor |
waste sorting unit (Centralized recycling centres to which waste materials are brought and where they are separated) |
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| unitate forestieră |
forestry unit (Any entity or group of individuals involved with the creation, management and conservation of an extensive area of woodland, often to produce products and benefits such as timber, clean water, biodiversity and recreation) |
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| unitate medicală |
health facility (A facility or location where medical, dental, surgical, or nursing attention or treatment is provided to humans or animals) |
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| unitate turistică |
touristic unit (No definition needed) |
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| Uniunea Europeană |
European Union (The 15 nations (Belgium, Denmark, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal, Spain, the UK, Austria, Finland and Sweden) that have joined together to form an economic community with common monetary, political and social aspirations. The EU came into being on 1 November 1993 according to the terms of the Maastricht Treaty; it comprises the three European Communities, extended by the adoption of a common foreign and security policy which requires cooperation between member states in foreign policy and security and cooperation in justice and home affairs) |
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