并针对叶片主干部分的椭圆柱面，分别推导其测地线和非测地线的微分方程序。
For the elliptic cylindrical surface which is the trunk of the blade, the geodesic and non-geodesic differential equations are deduced.
建立了绕椭圆柱面以等角速度旋转，又以变速度上升的非定常螺距的螺旋线方程。
A helix equation of time-varying pitch is established, revolving elliptic cylinder as equal angular velocity and rising as variable velocity at the same time.
对用宽度变化的镜子压制椭圆柱面和抛物柱面的方法进行了系统的讨论，给出了梯形镜的宽度变化公式。
The bending methods for elliptic and parabolic figure with variable-width mirror were discussed and the formula of variable-width for ladder-shaped mirrors was given.
文中采用并矢格林函数方法，分析和计算了椭圆柱面上微带天线的辐射特性，并讨论了辐射特性随离心率的变化规律。
Based on the method of Dyadic Greens functions, the radiation patterns of the microstrip antennas printed on the surface of elliptic cylinder are analysised and calculated in this paper.
文中采用并矢格林函数方法，分析和计算了椭圆柱面上微带天线的辐射特性，并讨论了辐射特性随离心率的变化规律。
Based on the method of Dyadic Greens functions, the radiation patterns of the microstrip antennas printed on the surface of elliptic cylinder are analysised and calculated in this paper.
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