名词
中文翻译：云母
同义词：
['micaite', 'muscovite']
例句：
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1. The mica in the rock has been polished to a high shine.
岩石中的云母经过打磨，变得非常光滑。
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2. The mineralogist studied the crystal structure of mica.
矿物学家研究了云母的晶体结构。
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3. The mica layer on the surface of the rock is essential for its strength.
岩石表面的云母层对其强度至关重要。