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| Terms for subject Environment (21488 entries) |
| casting cores and moulds containing organic binders which have undergone pouring | forme contenenti leganti organici utilizzate | |
| casuals | avventizi | |
| cat | cingolato | |
| cat-bear | panda dorato | |
| cat-bear | panda minore | |
| cat-bear | panda rosso | |
| catalogue of data sources | catalogo delle fonti di dati | |
| catalysers are quickly destroyed by thermal and mechanical action | i catalisatori si distruggono rapidamente per effetto termico e meccanico | |
| catalysis (A phenomenon in which a relatively small amount of substance augments the rate of a chemical reaction without itself being consumed) | catalisi | |
| catalyst (A substance whose presence alters the rate at which a chemical reaction proceeds, but whose own composition remains unchanged by the reaction. Catalysts are usually employed to accelerate reactions(positive catalyst), but retarding (negative) catalysts are also used) | catalizzatore | |
| catalysts removed from vehicles containing precious metals | catalizzatori contenenti metalli preziosi sostituiti in veicoli | |
| catalytic afterburner | post-combustore catalitico | |
| catalytic afterburner system | impianti di postcombustione catalitica | |
| catalytic afterburner system | postbruciatori catalitici | |
| catalytic afterburner system | postcombustori catalitici | |
| catalytic combustion unit | apparecchiatura a combustione catalitica | |
| catalytic combustor | apparecchiatura a combustione catalitica | |
| catalytic conversion | conversione catalitica | |
| catalytic converter (Catalytic converters are designed to clean up the exhaust fumes from petrol-driven vehicles, which are otherwise the major threat to air quality standards in congested urban streets and on motorways. Converters remove carbon monoxide, the unburned hydrocarbons and the oxides of nitrogen. These compounds are damaging to human health and the environment in a variety of ways. The converter is attached to the vehicle' s exhaust near the engine. Exhaust gases pass through the cellular ceramic substrate, a honeycomb-like filter. While compact, the intricate honeycomb structure provides a surface area of 23.000 square metres. This is coated with a thin layer of platinum, palladium and rhodium metals, which act as catalysts that simulate a reaction to changes in the chemical composition of the gases. Platinum and palladium convert hydrocarbons and carbon monoxide into carbon dioxide and water vapour. Rhodium changes nitrogen oxides and hydrocarbons into nitrogen and water, which are harmless) | marmitta catalitico | |
| catalytic incinerator | inceneritore catalitico |