名词
中文翻译：快门脉冲
同义词：
['shutter signal', 'shutter pulse', 'shutter event']
例句：
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1. The camera shuttered as the photographer focused on the scene.
摄影师聚焦于场景时，相机快门按下。
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2. The shutter pulse is a crucial part of the camera's operation.
快门脉冲是相机操作的关键部分。
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3.The shutter pulse is used to trigger the exposure of the camera.
快门脉冲用于触发相机的曝光。