根据中国天然气组分变化的情况，研究了天然气组分变化时，燃料的低热值、理论空燃比和燃烧势等燃烧参数的变化；
The variations of lower heating value, theoretical air fuel ratio and combustion potential of natural gas fuel were investigated according to the variation of natural gas composition in China.
往复炉排能适应低热值煤的燃烧，但是炉排片经常烧损。
The reciprocating-grade is generally adapted in burning lower-grade coals, but its grade bars are frequently damaged by burning.
对低热值气体燃料层流燃烧特性的研究可对燃料的燃烧品质进行全面的了解，为其在发动机上的应用提供理论基础。
Study on the laminar combustion characteristics of low calorific value gas fuel provide people with an overall understanding of the fuel combustion quality.
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