分析了固液发动机推进剂的燃烧特性和发动机性能特性、与液体和固体火箭发动机的不同，以及研制的技术难度等。
The propellant feature of burning behavior and engine in hybrid engine, the differences to liquid and solid engine and the difficulties of technology in development were analyzed.
由生成的放热规律曲线分析了液化石油气发动机的燃烧特性，并提出了改善液化石油气发动机的性能的措施。
Then it analyzes the combustion characteristic of the LPG engine based on the curve of the heat release rate, and puts forward the measure of improving the performance of the LPG engine.
为了使军用发动机系统的性能更优良，设计效率更高，本文对某军用发动机主要零部件组合结构进行了动态特性的研究。
In order to enhance the performance and design efficiency of military engine system, dynamic features of combined structure of military engine main parts are researched.
最后进行了天然气发动机台架实验，研究了点火提前角对发动机燃烧特性、排放性能的影响。
Finally, bench test was toke out on CNG engine, the influence of ignition advance Angle on dynamic and combustion characteristic was studied.
预测了巡航条件下发动机节流特性、内涵喷口几何面积对发动机性能影响，结果与其它有效数据相吻合。
The flow control characteristics and the effects of inner duct exit dimension on overall engine performances were presented by the program.
为了解决工程研制中某型涡扇发动机性能调整与优化问题，建立了关键截面调整对发动机特性影响的数学模型并开发了相应的程序。
A model of optimizing the turbofan engine performance by adjusting the key sections of components and the program based on the model were developed.
为了解决工程研制中某型涡扇发动机性能调整与优化问题，建立了关键截面调整对发动机特性影响的数学模型并开发了相应的程序。
A model of optimizing the turbofan engine performance by adjusting the key sections of components and the program based on the model were developed.
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