以两段法等制作的普通煤气及化工、 冶金企业中含可燃组分的废气等，都是低热值燃料。
The coal gases came from two-stage gasification process and the exhaust gases containing combustible components from chemical and metallurgical industries are all low heating value (LHV) gas streams.
可燃气体的浓度、组分及热值变动较之地面气化炉气化差别较大；
The density of flammable gas, components and variety of heat value are very different from the gasification on the ground gasification furnace;
另外，采用超细组分或添加燃速催化剂也是提高推进剂燃速和拓宽低压可燃极限的重要途径。
The greater the contents of AP and magnesium are, the higher burning rates of the propellant and the broader flammability limit. On the other h…
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