By regulating the amount of coal and rationally organizing the internal furnace combustion, the total efficiency of the boiler has been remarkable enhanced.

控制系统通过调节供入的燃料量和合理组织炉内燃烧，提高了锅炉的运行效率。

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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