| υδροεγχυτήρας |
jetter unit |
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| υδροεγχυτήρας |
jetting machine |
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| υδροηλεκτρική ενέργεια |
hydroelectric energy |
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| υδροηλεκτρική ενέργεια |
hydroelectric energy (The free renewable source of energy provided by falling water that drives the turbines. Hydropower is the most important of the regenerable energy sources because of its highest efficiency at the energy conversion. There are two types of hydroelectric power plants: 1. run-of-river power plants for the use of affluent water; 2. storage power plants (power stations with reservoir) where the influx can be regulated with the help of a reservoir. Mostly greater differences in altitudes are being used, like mountain creeks. Power stations with reservoirs are generally marked by barrages with earth fill dam or concrete dams. Though hydropower generally can be called environmentally acceptable, there exist also some problems: 1. change of groundwater level and fill up of the river bed with rubble. 2. Risk of dam breaks. 3. Great demand for land space for the reservoir. 4. Diminution, but partly also increase of value of recreation areas. As the hydropowers of the world are limited,the world energy demand however is rising, finally the share of hydropower will decrease) |
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| υδροηλεκτρικός σταθμός (παραγωγής ενέργειας) |
hydroelectric power plant |
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| υδροηλεκτρικός σταθμός (παραγωγής ενέργειας) |
hydroelectric power station |
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| υδροηλεκτρικός σταθμός τρέχοντος ύδατος |
run-of-river hydro-electric power station |
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| υδρολογία |
hydrology (The science that treats the occurrence, circulation, distribution, and properties of the waters of the earth, and their reaction with the environment) |
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| υδρολογική ισορροπία/υδρολογικό ισοζύγιο |
hydrologic balance |
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| υδρολογική καταστροφή |
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) |
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| υδρολογική λεκάνη |
catchment area (1. An area from which surface runoff is carried away by a single drainage system. 2. The area of land bounded by watersheds draining into a river, basin or reservoir) |
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| υδρολογική ροή |
hydrologic flow |
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| υδρολογική ροή |
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) |
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| υδρολογικό ισοζύγιο |
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) |
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| υδρολογικός κίνδυνος |
hydrological risk |
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| υδρολογικός κύκλος |
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) |
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| υδρομαστευτικό φρέαρ |
wet well |
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| υδρομετεωρολογία |
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) |
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| υδρονομική εγκατάσταση/μηχανοστάσιο ύδρευσης |
waterworks |
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| υδρονομική εγκατάσταση/μηχανοστάσιο ύδρευσης |
waterwork |
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