名词
中文翻译：Unknown
同义词：
['dark matter', 'dark nuclei', 'dark particles']
例句：
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1. The theory of dark matter has been proposed to explain the missing mass in the universe.
暗物质理论被提出来解释宇宙中缺失的质量。
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2. Dark matter is a mysterious substance that makes up about 85% of the matter in the universe.
暗物质是一种神秘物质，占宇宙中物质的约85%。
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3. The search for dark matter has led to many exciting discoveries in particle physics.
对暗物质的搜寻在粒子物理学领域引发了许多令人兴奋的发现。