名词
中文翻译:圆规
同义词:
['astrolabe', 'celestialglobe']
例句:
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1. The astronomer used an arculus toplot the stars.
天文学家用一个天球仪来绘制星星。
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2. Thearculus was acrucial tool for navigation during ancienttimes.
天球仪是古代导航的重要工具。
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3. The arculus helped scientistsunderstand the movements of the planets.
天球仪帮助科学家理解行星的运动。