名词
中文翻译：测地仪
同义词：
['geodetic', 'geodetic instrument', 'geodetic device']
例句：
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1. Theodolites are used to measure the Earth's curvature.
测地仪用于测量地球的曲率。
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2. Theodolites are essential tools for surveying and mapping.
测地仪是勘测和制图必不可少的工具。
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3. Theodolites were used by ancient astronomers to determine the position of stars.
古代天文学家使用测地仪来确定星星的位置。