名词短语
中文翻译：显而易见的常数
同义词：
['obvious constant', 'apparent constant']
例句：
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1.The apparent constant of the Earth's rotation is 24 hours.
地球自转的明显常数是24小时。
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2.The apparent constant of the Earth's gravity is approximately 9.8 meters per second squared.
地球的重力明显常数大约是9.8米每秒平方。
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3. In physics, an apparent constant is a value that appears to be constant when measured over time or space.
在物理学中，一个明显的常数是指在测量时间或空间时似乎保持不变的值。