These are the flashes that light the scene, and a high-speed trigger.
它们就是闪光灯和一个高速触发器。
The high-speed trigger sets off the flashes when the ambient sound volume goes over a certain level.
高速触发器在环境音量超过特定的水平时启动闪光灯。
The high-speed trigger sets off the flashes when the ambient sound volume goes over a certain level.
高速触发器在环境音量超过特定的水平时启动闪光灯。
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