The weather was at its worst; bitterly cold, with leaden skies that gave minimum visibility.
天气极其恶劣。寒风刺骨，天色晦暗，能见度极低。
Minimum visibility appeared in spring and winter, while the maximum appeared in summer.
春季和冬季能见度最低，秋季其次，夏季的能见度水平最高。
This paper introduces a new method of measuring the refractive index of parallel-sided transparent material with a Michelson interferometer-the minimum visibility of sodium light fringes.
介绍一种用迈克耳逊干涉仪测量平面平行透明物体折射率的新方法。
This paper introduces a new method of measuring the refractive index of parallel-sided transparent material with a Michelson interferometer-the minimum visibility of sodium light fringes.
介绍一种用迈克耳逊干涉仪测量平面平行透明物体折射率的新方法。
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