名词
中文翻译：变量焦点
同义词：
['variable focus', 'variable point of focus例句：1. The camera is set to a variable focus for close-up shots.（相机设置为变焦以进行近距离拍摄。）']
例句：
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1. The camera is set to a variable focus for close-up shots.
相机设置为变焦以进行近距离拍摄。
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2.The projector has a variable focus that adjusts automatically.
投影仪具有自动调整的变焦功能。
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3. The scientist focused on the variable points of interest in the data.
科学家专注于数据中可变的兴趣点。