名词中文翻译1
中文翻译：Unknown
同义词：
['average solar hour', 'average sun hours', 'mean solar day', 'mean solar time', 'mean solarduration']
例句：
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1. The region has a mean solar hour of 7 hours.
该地区的平均日照小时数为7小时。
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2. The farmers need to calculate the mean solar hour for their crops.
农民需要计算作物的平均日照小时数。
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3. The city's mean solar hour is significantly less than that of the countryside.
城市的日均日照时间明显少于乡村。