In addition, we research atmospheric refraction influence to space-earth satellite communication, and put forward that amending emission Angle can eliminate excursion between beam and satellite.
另外，本文还对大气折射对空地卫星光通信的影响做了研究，提出了利用修正光源的发射角来消除大气折射所引起的光束与卫星之间偏移的思想。
Reduction of the focus hole diameter strongly affects the electrons with large emission angle but its influence on electron focusing is less markedly than the influence of the variations in potential.
减小聚焦极孔径对大发散角的电子有影响，但对聚焦作用的影响不如改变电位明显。
Vertical Angle of maximum candlepower emission.
最大发射光线的垂直角。
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