相反，从非激光平行光源发出的光就不能被光学所瞄准。
In contrast, the light from non-laser light sources cannot be collimated by optics as well.
用在弹头上安装针孔照相机的方法，并借助一个频闪平行光源，能够直接记录攻角——时间变化曲线。
The method of pinhole camera which is set up at the cone of a projectile, can record the yaw-time curve directly by a frequency-flash parallel light.
光学性能是在CHF - XM 35 - 500 W氙灯-汞灯高亮度点光源平行光源系统的照射下进行测定的。
Optical performance was measured under the irradiation of the CHF-XM35-500W xenon lamp with a parallel light source system.
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