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| Terms for subject Environment (6297 entries) |
| rain erosion susceptibility | القابلية للتعرية المطرية | |
| rain erosivity | قدرة المطر على الجرف | |
| 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) | غابة مطيرة | |
| rain water (Water which falls as rain from clouds) | مياه الأمطار | |
| rain water sewer system (Channels for clearing away rain water) | نظام تصريف مياه الأمطار | |
| rainfall acceptance | قدرة امتصاص ماء المطر | |
| rainfall erosion | انجراف بفعل المطر | |
| rainout (Process by which particles in the atmosphere act as centres round which water can form drops which then falls as rain) | مطر من تكثف الماء حول جزيئات الجو | |
| rainwash (splash and overland flow) | انجراف بسبب الطرطشة والإنسيال | |
| raising a site (The building up of land by the deposition of allochthonous material, such as rocks, gravel, etc.) | إقامة موقع | |
| random test (Tests which do not always yield the same result when repeated under the same conditions) | اختبار عشوائي | |
| rape (A Eurasian cruciferous plant, Brassica napus, that is cultivated for its seeds, which yield a useful oil, and as a fodder plant; plant) | السلجم - اللفت | |
| rapid test (Tests performed in the medical field whose results are available very quickly) | اختبار سريع | |
| rapid transit train | قطار محافظات سريع | |
| rare species (Species which have a restricted world range) | أنواع نادرة | |
| raster (One of the two major types of internal data organization used in GIS. Raster systems superimpose a regular grid over the area of interest and associate each cell-or pixel, to use the image term- with one or more data records. The values associated with each grid cell may represent either real values or any scalar or nominal data values associated with the cell coordinates. Among the strengths of the raster method is its ability to accept data directly from remote sensing systems and to represent transitional information. Raster systems tend to be relatively storage-intensive and this imposes practical limits on the area of coverage, the resolution, or both of these. Capacity constraints are, however, becoming less significant as computer memory and storage become more powerful and as data compression techniques become more readily available) | الراستر | |
| raster to vector (Methods to convert remotely sensed raster data to vector format. A number of raster-to-vector and vector-to-raster conversion procedures have been developed and introduced to current releases of many GIS packages) | راستر إلى متجه | |
| rate (The amount of change in some quantity during a time interval divided by the length of the time interval) | معدَّل | |
| ravine erosion | انجراف مسيلى أو فجيجى | |
| raw material (A crude, unprocessed or partially processed material used as feedstock for a processing operation) | مادة خام |