... exit area of nozzle ==> 喷嘴出口面积 exit area ratio ==> 喷管面积比 exit blade angle ==> 叶片出口(离)角 ...
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本文分析了高空大面积比喷管在地面试验时喷管内出现火焰偏摆的原因，叙述了喷管内气流不对称分离的机理。
This paper analyses reason for flame swinging in high-altitude nozzle with the ratio of large area tested under the ground atmosphere, and describes the mechanism of unsymmetrical separation.
在单元数足够多时，环簇式塞式喷管可比相同面积比的钟形喷管的尺寸更小，重量更轻，推力效率更高；
When numbers of the inner nozzle are enough, plug nozzle has less size, less weight and higher thrust efficiency than the bell nozzle under same area ratio.
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