组合动力将两种或以上单一类型的动力有机结合，结构相互融合，功能相互补充，大大拓展了飞行包线、提高飞行效率，在临近空间高速飞行器、重复使用航天运输系统等领域具有重要应用。介绍了组合动力基本分类及工作原理，综述了组合动力技术在临近空间高速飞行器、重复使用航天运输系统等领域的应用，总结了组合动力飞行器发展趋势及主要关键技术。
Combined cycle propulsion combines two or more single types of power organically, with integrate each other in structure and complements each other in function, greatly expanding flight envelope and improving flight efficiency. It has important applications in near space hypersonic vehicle, reusable space transportation system and other fields. This paper introduces the basic classification and working principle of combined cycle propulsion, reviews the application of combined cycle propulsion technology in near space hypersonic vehicle and reusable space transportation system, and summarizes the development trend and main key technologies of combined cycle propulsion vehicle.
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