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1. The astronomers used a stereo-telescope to observe the stars.
天文学家们使用立体望远镜来观察星星。
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2. The astronomy club has been using this new stereo-telescope for their observations.
天文俱乐部一直使用这个新的立体望远镜进行观测。
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3. The team is planning to use a stereo-telescope to study the planet Mars.
团队计划使用一个立体望远镜来研究火星。