名词
中文翻译：Unknown
同义词：
['mathematical oscillator', 'mathematical swing', 'mathematical pendulum']
例句：
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1. The mathematical pendulum swings back and forth in the wind.
在风中，数学摆来回摆动。
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2.The mathematical pendulum is used to measure the time of day.
数学摆被用来测量一天的时间。
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3. The mathematical pendulum was used as a clock mechanism in ancient Egypt.
数学摆作为古埃及时钟机制被使用。