The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.
笔者通过研究，
出
火山岩系中
火山成因矿床和未基性火山岩系中共生矿床，认为前者金属聚集与岩浆有密切关系。
The volcanogenic deposits hosted in differential yolcanic rock series and cogenetic deposits hosted in undifferential baste volcanic rock series have been divided and studied in this paper.
笔者通过研究，出火山岩系中火山成因矿床和未基性火山岩系中共生矿床，认为前者金属聚集与岩浆有密切关系。
：
上例句、词性
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