Contrast with single base gun propellant with polymer coating layer, the two-layered variable-burning rate propellant has good properties of progressive combustion and low temperature coefficient.

与高分子包覆单基发射药相比，双层结构变燃速发射药具有较好的燃烧渐增特性和明显的低温度系数效果。

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The results show that maximum combustion temperature and smog exhaust temperature increase with the increase of phosphorus mass flow rate when excess-air coefficient or air capacity is a constant;

结果表明，在空气过剩系数或空气量不变时，最高燃烧温度和烟气排放温度随燃磷量增加呈单调递增趋势；

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