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.
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 intense pulsed light system which the light source is Xe-flash-lamp has become the optimal method for the photo-rejuvenation all the world now.
目前，采用脉冲氙灯作为光源的强脉冲光治疗机已经成为国际上进行光子嫩肤的最佳选择。
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