名词
中文翻译：三重天体
同义词：
['triangular nebula', 'triangular cloud', 'triangular star cluster']
例句：
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1. The discovery of Triangulum Nebula has sparked a new era in astronomy.
发现三重天体开启了天文学的新时代。
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2.The Triangulum Nebula is a fascinating object that scientists are still studying.
三重天体是一个令人着迷的对象，科学家们仍在研究它。
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3.In the Triangulum Nebula, we can see the birth and death of stars.
在三重天体中，我们可以看到恒星的诞生和消亡。