By default, Ignore Layers is none so all geometry that intersects the Projector frustum will be affected.
因此与投影机平截头体相交的几何体都会受到影响。

This method and computer program are applicableto find vibration characteristics of conical frustum shell.
这方法和程序可以应用于计算截顶圆锥壳的振动特性。

Contrast Study on Replacing the Frustum of the Oblique Cone with the frustum of the Right Cone Cutting obliquely
斜截正锥体截头代替偏心圆锥体截头的比较研究

A research on clinical practice of combination model formed from frustum of a cone and cylinder for cardiac Impedance plethysmography differential diagram
心阻抗微分图园台园柱体组合模型的临床应用研究