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1·The design and computation of the hypersonic nozzle have scientific and practical value to solve these problems.

而高超声速风洞喷管的设计和计算则对解决这一类问题具有重要的科学意义和实用价值。

2·For hypersonic vehicles, the effect of nozzle aerodynamic characteristics on vehicles performance is serious.

基于特征线法，并考虑变比热的影响，开展了高超声速飞行器用单膨胀斜面喷管设计。

3·The DF chemical laser, adopting the Hypersonic-Low Temperature(HYLTE) nozzle in linear array form, was numerically studied.

利用数值模拟方法对采用高超音速低温喷管（HYLTE）线性阵列DF化学激光器进行了研究。