Language is a system that consists of the development, acquisition, maintenance and use of complex systems of communication, particularly the human ability to do so; and a language is any specific example of such a system.
Nearly zero-energy buildings are a major element of European climate policy, and by 2021 every new building has to meet this standard. Hybrid systems that are 100 % renewables will help transform the heating and cooling market, providing improved efficiency and carbon dioxide reductions.
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