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1·Under definite conditions, the intersection of an elliptic cone with a plane is a circle.

在特定条件下，椭圆锥与平面的截交线为圆。

2·In this paper, a conformal mapping analysis of a vacuum microelectronic diode is presented, which uses an elliptic cone conductor as its cathode.

采用许瓦兹-克里斯托福变换，求得了以椭圆锥为发射体的真空微电子二极管区域的电位分布的解析解。

3·The paper presents the graphic method of solution of the intersection of right elliptic cone with plane by rotation of auxiliary planes at a certain Angle.

提出一种将辅助平面旋转某个特定的角度图解正椭圆锥面截交线的方法。

4·In this paper, the strong extremal principles have been proved for second or der linear elliptic equations on the domain which satisfies an interior cone condition.

本文对一般的二阶线性椭圆型方程，在满足内部锥条件时，证明了其强极值原理。