名词中文翻译
中文翻译：焦点比率退化
同义词：
['focus ratio degradation', 'focal point degradation']
例句：
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1. Thecamera's focal ratio is significantly reduced in this new model.
这款新型号的相机焦距比明显降低。
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2.The image quality of the lens was severely degraded due to the focus ratio issue.
由于聚焦比例问题，镜头的图像质量严重下降。
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3.The film's contrast and color were noticeably degraded due to the focal ratio adjustment.
由于聚焦比例调整，电影的对比度和色彩明显下降。