But on the other hand, the use of over-fire air reduces the combustion efficiency of pulverized coal.
但另一方面，燃尽风的应用将导致煤粉燃烧效率下降。
When the pulverized coal blended with petroleum coke is burned in the boiler, the combustion characteristics would becomecomplicate, even the combustion efficiency of boiler would decline.
将石油焦与烟煤掺混在煤粉锅炉里进行燃烧，使燃烧特性变得复杂，甚至使锅炉燃烧效率下降。
The main problems of pulverized coal combustion are to improve efficiency of combustion and to decrease pollution. Latest development of these aspects research is generalized in this paper.
煤粉燃烧需要解决的主要问题是提高燃烧效率和降低污染，对这两大问题的研究进展进行了概述。
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