名词
中文翻译：地动仪
同义词：
['seismometer', 'geodetic meter']
例句：
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1. The seismometer is used to detect earthquakes.
地震仪用于检测地震。
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2. The geodetic meter is used to measure the Earth's shape.
大地测量仪用于测量地球的形状。
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3. The seismometer was invented by a scientist who wanted to understand the causes of earthquakes.
地震仪是由一位科学家发明的，他想了解地震的原因。