名词
中文翻译：垂直摆锤
同义词：
['vertical swing', 'vertical pendulum', 'vertical oscillator']
例句：
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1.The scientist used a vertical pendulum to measure the speed of the falling object.
科学家使用一个垂直摆锤来测量下落物体的速度。
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2. The vertical pendulum was used as a clock mechanism in ancient times.
古代，垂直摆锤被用作时钟机制。
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3. The vertical pendulum is a simple yet effective way to measure the length of an object.
垂直摆锤是一种简单而有效的方法来测量物体的长度。