On the whole, the combustion efficiency of the coal powder with additives increases by 20%; meanwhile, the range analysis and variance analysis are used with the experimental data.
总体上，混有添加剂煤粉的燃烧率相对于未添加任何物质的基准试样煤粉提高了20%左右，并对试验结果进行了极差和方差分析。
The additive can solve the problem of slagging in the combustion process of the formed fuel and increases the combustion efficiency of the formed fuel.
本发明提供的添加剂能够降低成型燃料的燃烧过程中的结渣问题，提高成型燃料的燃烧效率。
As the length of secondary combustion chamber increases, the thrust, specific impulse and combustion efficiency increase respectively.
随着补燃室长度的增大，发动机推力、比冲和燃烧效率均提高。
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