| ثاني أكسيد الكبريت |
sulphur dioxide (Emissions of the gas given off during the burning of fossil fuels in power stations and other boilers. Sulphur dioxide is created because sulphur is an impurity in most coal and oils. When the fuel is burned the hot sulphur reacts with oxygen in the atmosphere to form sulphur dioxide, SO2) |
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| ثاني أكسيد الكربون |
carbon dioxide (A colourless gas with a faint tingling smell and taste. Atmospheric carbon dioxide is the source of carbon for plants. As carbon dioxide is heavier than air and does not support combustion, it is used in fire extinguishers. It is a normal constituent of the atmosphere, relatively innocuous in itself but playing an important role in the greenhouse effect. It is produced during the combustion of fossil fuels when the carbon content of the fuels reacts with the oxygen during combustion. It is also produced when living organisms respire. It is essential for plant nutrition and in the ocean phytoplankton is capable of absorbing and releasing large quantities of the gas, CO2) |
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| ثاني أكسيد النيتروجين |
nitrogen dioxide (A reddish-brown gas; it exists in varying degrees of concentration in equilibrium with other nitrogen oxides; used to produce nitric acid, NO2) |
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| ثبات التربة |
soil stability (Soil stability depends on its shear strength, its compressibility and its tendency to absorb water. Stabilization methods include physical compaction and treatment with cement, lime, and bitumen) |
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| ثدييات مائية |
marine mammal (Mammals which have adapted to live in the sea, such as whales, dolphins, porpoises, etc.) |
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| ثدييات مائية |
aquatic mammal |
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| ثعبان - أفعى |
snake (Any reptile of the suborder Ophidia, typically having a scaly cylindrical limbless body, fused eyelids, and a jaw modified for swallowing large prey: includes venomous forms such as cobras and rattlesnakes, large nonvenomous constrictors, and small harmless types such as the grass snake) |
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| ثقافة |
culture (The body of customary beliefs, social forms, and material traits constituting a distinct complex of tradition of a racial or social group; society) |
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| ثقافة بيئية |
environmental culture (The total of learned behavior, attitudes, practices and knowledge that a society has with respect to maintaining or protecting its natural resources, the ecosystem and all other external conditions affecting human life) |
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| ثقافة تقليدية |
traditional culture (Learned, nonrandom, systematic behavior and knowledge transmitted over several generations, especially customs and beliefs originating before the advent of modern science and technology) |
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| ثلاثي الآزين |
triazine (Azines that contain three nitrogen atoms in their molecules) |
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| ثلاثي الفنيل المهلجن |
halogenated terphenyl |
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| ثلاثي الفينيل البولي كلوريني |
polychlorinated terphenyl (Compounds consisting of three benzene rings linked to each other in either ortho, meta or para positions and substituted with chlorine atoms) |
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| ثلاثي الفينيل عديد الكلور |
polychlorinated terphenyl |
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| ثلاجة |
refrigerator (An appliance, a cabinet, or a room for storing food or other substances at a low temperature) |
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| ثلج |
snow (The most common form of frozen precipitation, usually flakes or starlike crystals, matted ice needles, or combinations, and often rime-coated) |
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| ثمرة - فاكهة |
fruit (A fully matured plant ovary with or without other floral or shoot parts united with it at maturity) |
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| ثنائي الفنيل المهلجن |
halogenated biphenyl (Halogen derivatives of biphenyl) |
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| ثنائي الفينيل البوليبروميني |
polybrominated biphenyl (A chemical substance the composition of which, without regard to impurities, consists of brominated biphenyl molecules) |
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| ثنائي الفينيل البوليكلوريني |
polychlorinated biphenyl (PCBs are a family of chemical compounds which do not exist in nature but which are man-made. Commercial mixtures are clear, pale yellow liquids, manufactured by the replacement of hydrogen atoms on the biphenyl molecule by chlorine. Because of their physical properties, PCBs are commonly found in electrical equipment which requires dielectric fluid such as power transformers and capacitors, as well as in hydraulic machinery, vacuum pumps, compressors and heat-exchanger fluids. Other uses include: lubricants, fluorescent light ballasts, paints, glues, waxes, carbonless copy paper, inks including newspapers, dust-control agents for dirt roads, solvents for spreading insecticides, cutting oils. PCBs are stable compounds and although they are no longer manufactured they are extremely persistent and remain in huge quantities in the atmosphere and in landfill sites. They are not water-soluble and float on the surface of water where they are eaten by aquatic animals and so enterthe food chain. PCBs are fat-soluble, and are therefore easy to take into the system, but difficult to excrete) |
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