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1. The astronomer used the astrocompass to measure the distance between the stars.
天文学家使用同步天体测量仪来测量恒星之间的距离。
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2. The astronomer used the astrocompass to map out the galaxy's structure.
天文学家使用同步天体测量仪来绘制银河系的构造。
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3. The astronomer used the astrocompass to study the movement of planets and stars.
天文学家使用同步天体测量仪来研究行星和恒星的运动。