名词
中文翻译：分划零点
同义词：
['zero point', 'zero division']
例句：
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1. The vernier zero is used to measure the smallest possible unit of length.
分划零点用于测量最小可能的长度单位。
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2. In physics, the vernier zero is a reference point for measuring angles.
在物理学中，分划零点是测量角度的参考点。
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3. The vernier zero was introduced in the late 18th century as a way to improve the accuracy of clocks.
分划零点是在18世纪末引入的，作为一种提高时钟准确性的方法。