简单的触发装置允许单发和全自动射击。
The simple trigger unit allows for single shots and full automatic fire.
开关管冲击耐压装置由高压脉冲产生器、击穿检测器、触发器，及自动控制器、DC/AC 变换器等构成。
The high voltage endurance test device for switch tube is composed of high voltage pulse generator, high voltage breakdown detector, trigger, auto-controller and DC/AC converter.
闪光灯组上装置了声音触发装置，当被摄体跳起后可通过击掌自动触发闪光灯。
A sound trigger was attached to the flash unit so that the jumper could set off the flash automatically by clapping his hands.
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