... This Improves Boiler Efficiency 改进锅炉效率 TOTAL BOILER EFFICIENCY 锅炉总效率 efficiency of boiler 锅炉效率 ; 锅垆效率 ...
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In the residential sector, combined with the home Energy Efficiency Scheme and Boiler Scrappage Scheme, a total of 25, 000 Welsh homes were improved and made cheaper to heat during 2010-11.
BBC: Debate on climate change
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