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| Terms for subject Environment (6774 entries) |
| radioelement (An element that is naturally radioactive) | prvek radioaktivní | |
| radionuclide (A nuclide that exhibits radioactivity) | radionuklid | |
| radon (A radioactive gaseous element emitted naturally from rocks and minerals where radioactive elements are present. It is released in non-coal mines, e.g. tin, iron, fluorspar, uranium. Radon is an alpha particle emitter as are its decay products and has been indicted as a cause of excessive occurrence of lung cancer in uranium miners. Concern has been expressed at radon levels in some housing usually adjacent to granite rocks or old tin mining regions) | radon | |
| rag (Discarded textile waste, either post-consumer waste or pre-consumer waste, such as manufacturing process scraps) | textil starý | |
| rail traffic (The movement and circulation of vehicles transporting goods and people on railroad systems) | doprava železniční | |
| rail transport (Transportation of goods and persons by railway) | doprava železniční | |
| railroad vehicle | vůz železniční | |
| railway (A permanent track composed of a line of parallel metal rails fixed to sleepers, for transport of passengers and goods in trains) | železnice | |
| railway network (The whole system of railway distribution in a country) | síť železniční | |
| railway station (A place along a route or line at which a train stops to pick up or let off passengers or goods, especially with ancillary buildings and services) | nádraží | |
| rain (Precipitation in the form of liquid water drops with diameters greater than 0.5 millimeter) | déšť | |
| rain forest (A forest of broad-leaved, mainly evergreen, trees found in continually moist climates in the tropics, subtropics, and some parts of the temperate zones) | les deštný | |
| rain water (Water which falls as rain from clouds) | voda dešťová | |
| rain water sewer system (Channels for clearing away rain water) | síť kanalizační oddílná | |
| rainout (Process by which particles in the atmosphere act as centres round which water can form drops which then falls as rain) | spad látek znečišťujících při dešti | |
| raising a site (The building up of land by the deposition of allochthonous material, such as rocks, gravel, etc.) | budova v místě vyvýšeném | |
| random test (Tests which do not always yield the same result when repeated under the same conditions) | test nahodilý | |
| rape (A Eurasian cruciferous plant, Brassica napus, that is cultivated for its seeds, which yield a useful oil, and as a fodder plant; plant) | řepka olejná | |
| rapid test (Tests performed in the medical field whose results are available very quickly) | test rychlý | |
| rapid transit train | rychlovlak |