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| English | Italian |
| closed loop system within ecoindustrial district | sistema a ciclo chiuso attraverso un distretto ecoindustriale |
| district heating The supply of heat, either in the form of steam or hot water, from a central source to a group of buildings | riscaldamento urbano |
| district heating plant Plant for heating all houses in a district; it consists of a large, efficient, centralized boiler plant or "waste" steam from a power station. The heat is distributed by means of low-pressure steam or high-temperature water to the consumers | impianto di riscaldamento urbano |
| mining district | distretto minerario |
| mining district A district where mineral exploitation is performed | distretto minerario |
| river basin district | distretto idrografico |
| urban district with minimum emissions | quartiere urbano con emissioni ridotte al minimo |