名词
中文翻译：Unknown
同义词：
['astronomical instrument', 'astronomical device', 'astronomical instrumentation']
例句：
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1. The astronomer used an astigmator to measure the distance between the stars.
天文学家使用一个星体测量器来测量星星之间的距离。
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2. The astronomer developed a new astigmator that could detect even fainter celestial objects.
天文学家开发了一种新型的星体测量器，能够检测到更微弱的天体对象。
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3. The astigmator was used to calculate the orbit of the spacecraft around the sun.
星体测量器被用来计算宇宙飞船围绕太阳的轨道。