从理论上证明了在脉动燃烧控制方式下，控制对象是带延迟的一阶惯性环节，以及影响稳态炉温波动的因素。

It proves that the subject with pulse-firing control system is an inertial system with delay, and analyses the factors affecting stability of the temperature.

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介绍了硼的物理化学特性和燃烧机理，硼的点火延迟期长、燃烧效率低是由其本身的特性所决定的。

Physicochemical properties and combustion mechanism of boron are introduced. Long ignition delay time and low combustion efficiency are due to the properties of boron itself.

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二甲醚喷油延迟角比柴油大，最高爆发压力、最大压力升高率、燃烧噪声比柴油低；

Since the ignition delay of DME is shorter than that of diesel, thus makes the lower value of maximum cylinder pressure, maximum rate of pressure rise and combustion noise.

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