本文利用一条等熵参考线和两个等焓偏导数建立了火箭发动机性能参数的外推公式。
In this paper, the extrapolation formulas of rocket engine performance parameters are established utilizing one isentropic reference line and two partial derivatives for fixed enthalpy.
导出了外推参数的计算公式。
The computing formulae for extrapolation parameters are also derived.
在实验数据和理论公式相结合的基础上对格栅蠕变行为进行外推，这是预测格栅的长期使用寿命的方法之一。
One of predicting methods of is to extrapolate its creep behavior based on the combination of testing data and theory formula.
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