名词
中文翻译：Unknown
同义词：
['petrotype', 'petrographic type']
例句：
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1.The petrographic study of the rock is essential for understanding its composition.
对岩石的地质研究对于理解其成分至关重要。
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2.The petrographic analysis of the minerals in the sample revealed a complex chemical composition.
样本中矿物的岩石学分析揭示了复杂的化学成分。
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3. The petrographic classification of the rocks is crucial for geological mapping.
岩石的岩石学分类对于地质制图至关重要。