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Terms for subject Environment (6297 entries)
soil texture (1. Refers to the relative proportions of the various size groups (sand, silt and clay) of the individual soil grains in a mass of soil. 2. Classification of soil by the proportion and graduations of the three size groups of soil grains, i.e., sand, silt and clay, present in the soil) تكوين التربة
soil type (A phase or subdivision of a soil series based primarily on texture of the surface soil to a depth at least equal to plow depth (about 15 cm)) نوعية التربة
soil use (Functional utilization of soil for agriculture, industry, or residential building purposes) استخدام التربة
soil use regime (Type of management and utilization of the soil) نظام استخادم التربة
soil water (Water stored in soils) ماء التربة
solar cell (A device for converting sunlight into electrical power using a semiconductor sensitive to the photovoltaic effect. Solar cells are used on space satellites to power electronic equipment, and as their price falls they may come to be used to provide energy on the Earth) خلية شمسية
solar collector (Device which converts the energy from light into electricity. The collector system contains a concentrator and a receiver. The concentrator redirects and focuses sunlight on the receiver by using mirrors or lenses, and the receiver absorbs solar radiation and converts it to heat) مجمع شمسي
solar energy (The energy transmitted from the sun in the form of electromagnetic radiation. The most successful examples of energy extraction from the sun are so far solar cells used in satellites and solar collectors used to heat water) طاقة شمسية
solar energy technology (Solar energy can be converted to useful work or heat by using a collector to absorb solar radiation, allowing much of the sun's radiant energy to be converted to heat. This heat can be used directly in residential, industrial, and agricultural operations; converted to mechanical or electrical power; or applied in chemical reactions for production of fuels and chemicals) تكنولوجيا الطاقة الشمسية
solar heating (A domestic or industrial heating system that makes direct use of solar energy. The simplest form consists of a collector through which a fluid is pumped. The circuit also contains some form of heat storage tank and an alternative energy source to provide energy when the sun is not shining. The collector usually consists of a black surface through which water is piped, the black surface being enclosed behind glass sheets to make use of the greenhouse effect) التسخين الشمسي
solar power station (Plant where energy is generated using radiation from the sun) محطة طاقة شمسية
solar radiation (The electromagnetic radiation and particles emitted by the sun) أشعة شمسية
solid matter (A crystalline material, that is, one in which the constituent atoms are arranged in a three-dimensional lattice, periodic in three independent directions) مادة صلبة
solid particle (Any tiny or very small mass of material that has a definite volume and shape and resists forces that would alter its volume or shape) جزيء صلب
solid state (The physical state of matter in which the constituent molecules, atoms, or ions have no translatory motion although they vibrate about the fixed positions that they occupy in a crystal lattice) حالة صلبة
solid waste (Discarded solid materials. Includes agricultural waste, mining waste, industrial waste and municipal waste) نفايات صلبة
solid waste disposal (The orderly discarding, release, collection, treatment or salvaging of unwanted or useless non-liquid, non-soluble refuse) التخلص من النفايات الصلبة
solubility (The ability of a substance to form a solution with another substance) القابلية للذوبان
solvent (Substance, generally a liquid, capable of dissolving another substance) مُذيب
solvent recovery (Solvent recovery is a widely practised form of recycling where spent solvents are distilled and reused. However, the cheaper solvents are often incinerated or dumped in hazardous waste landfill sites) استعادة المذيب