名词
中文翻译：白昼运动
同义词：
['nocturnal motion', 'diurnal cycle']
例句：
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1. Thesun's diurnal motion causesthe Earth to rotate on its axis.
太阳的昼夜运动导致地球绕其轴旋转。
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2. The diurnal motion of theplanets is a fascinating topic inastronomy.
行星的昼夜运动是天文学中一个引人入胜的主题。
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3. Thediurnal motion of the Earth's magnetic field is responsible for many phenomenaobserved in nature.
地球磁场的昼夜运动是许多自然现象的原因。