Stratified combustion can extend the lean combustion limit to very lean region.

分层燃烧可使稀燃极限延伸到很小的当量比。

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The upper limit of operating load of the fluidized bed is determined by the basic load, stable combustion temperature of barks and the ability of the attemperation system.

流化床实际运行负荷的上限值可根据基本蒸汽负荷、流化床中树皮的稳定燃烧温度和减温系统的工作能力来确定。

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The experiment for combustion adjustment can effectively improve combustion as well as limit the probability of slagging and flameout.

燃烧调整试验较好地改善了炉内燃烧特性，有效地减少了锅炉结焦、渣和熄火现象。

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In the UK, several coal plants are due to close before the end of 2015 under the EU's Large Combustion Plants Directive, which is designed to limit emissions of pollutants from ageing plants.

CNN: Shale gas boom sparks EU coal revival