Heating, ventilation and air Conditioning in buildings represent a substantial energy demands and insufficient ventilation may result in poor indoor air quality and health problems.

加热、通风和空气在建筑物中意味着持续的能源需求，并且通风不足导致是内空气质量不好和健康受损。

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Long jump rivals Chris Tomlinson, the 2008 World indoor silver medalist, and 2006 European silver medalist Greg Rutherford, who will represent Newcastle, will also go head-to-head in a potentially explosive battle.

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