The first scheme was a diffuser with wide cone angle.
一种是大扩压角内有分割锥的扩压器 ；
That cone Angle is directly controlled by the focal length.
圆锥角度直接受到焦距的控制。
A light that shines everywhere within a cone defined by Spot Angle and Range.
光线在按照聚光灯的角度和范围所定义的一个圆锥区域照射所有物体。
The half-cone-angle has little effect on the oscillation frequency of thrust.
半锥顶角对推力波动特性影响很小。
The half-cone-angle has little effect on the oscillation frequency of thrust.
半锥顶角对推力波动特性影响很小。
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