The design of cone contour and hot-defend measure of the nozzle according as job-qualification of the nozzle, analyzing the influence of power with the change of the ratio of the throat.
依据喷管的工作条件进行了喷管型面设计、喷管热防护设计，分析了喷喉比对推力的影响。
The most basic contour that can be considered for a nozzle is a truncated cone.
最基本的轮廓，可以被视为一个喷嘴是一个截断锥。
PROFILE: The true picture of a surface in relation to a horizontal line; a contour of a designated surface of a cup, cone, or roller.
型面轮廓：与水平线相比表面的实际轮廓线；实际设计的外圈，内圈或滚子的轮廓线。
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