The mathematical model of reentry maneuvering trajectory is established. The fitting expression of aerodynamic coefficient function on velocity, attack of Angle and altitude is presented.

建立了再入机动弹道数学模型，给出了气动力系数为速度、迎角、高度的函数拟合式，进行了最佳再入机动弹道设计和仿真计算。

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Beeline fitting can keep the part of linearization and the acute Angle of Outlines of previous color blocks.

直线拟合可以保持原色块轮廓中比较线性化的部分和色块图形中的尖锐角部分。

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I found it convenient to use a right Angle reducing fitting, followed by a gray threaded pipe, and a gray hose barb that threads onto the gray pipe.

我发现它方便使用直角减少拟合，其次是一个灰色螺纹管，和一个灰色软管烧烤认为线程上的灰色管道。

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