pulsed light的用法和樣例：
例句
- We used weak pulses of light to monitor the precession, in effect obtaining stroboscopic images of the spin dynamics.
我們用弱光脈衝來觀測進動，取得了自旋運動的頻閃觀測影像。 - The colored lights from its revolving sign pulsed against the screen, splashing garish colors over the victim's body.
信號彩光脈衝在屏幕上跳動，在死者屍體上灑下眼裡炫目的光彩。
