名词
中文翻译：太阳周期变化
同义词：
['solar cycle', 'solar activity', 'solar variations例句：1. The scientists have observed significant changes in the solar cycle variation during the past year.（科学家们观察到过去一年中太阳周期变化显著。）2. These solar variations can affect our daily life and work.（这些太阳周期变化会影响我们的日常生活和工作。）']
例句：
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1. The scientists have observed significant changes in the solar cycle variation during the past year.
科学家们观察到过去一年中太阳周期变化显著。
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2. These solar variations can affect our daily life and work.
这些太阳周期变化会影响我们的日常生活和工作。
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3.The study of solar variations is crucial for understanding the Earth's climate system.
研究太阳周期变化对于理解地球气候系统至关重要。