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燧石角砾岩 chert breccia
·2,447,543篇论文数据，部分数据来源于NoteExpress
砾岩主要砾石成分为燧石，磨圆度较好，普遍含金刚石。
Chert with good abrasion the major content in conglomerate and diamonds are contained in it generally.
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Chert with good abrasion is the major content in conglomerate, and diamonds are contained in it generally.
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