名词
中文翻译：漏斗形反光镜
同义词：
['hourglass', 'hourglass lens例句：1. The hourglass reflector is used to measure the time it takes for light to pass through a liquid.（漏斗形反光镜用于测量光线通过液体所需的时间。）']
例句：
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1. The hourglass reflector is used to measure the time it takes for light to pass through a liquid.
漏斗形反光镜用于测量光线通过液体所需的时间。
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2. The hourglass reflector was designed to improve the accuracy of time measurement.
漏斗形反光镜被设计用来提高时间测量的准确性。
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3. The hourglass reflector was used in ancient times as a tool for measuring distances and angles.
漏斗形反光镜在古代被用作测量距离和角度的工具。