名词
中文翻译：镜头光圈开口
同义词：
['lens aperture', 'lens opening']
例句：
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1.The camera's lens aperture is very small, which affects the depth of field.
相机的镜头光圈非常小，这影响了景深。
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2. The photographer adjusted the lens aperture to achieve the desired effect.
摄影师调整了镜头光圈以达到所需的效果。
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3.When taking photos in low light conditions, it's important to keep the lens aperture open as wide as possible.
在低光条件下拍照时，保持镜头光圈尽可能大是很重要的。