以下为句子列表：
英文: On the basis of the past schemes, new classifications of pyroclasts and the petrographic as well as the petrogenetic classification of pyroclastic rocks are proposed in this paper.
中文: 中国学者提出的火山碎屑岩分类时间较早，有自己特色，在一定的範围得到了应用。
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英文: Pe trologists, both at home and abroad have spent a lot of time on the classification of pyroclastic rocks, and successively put forward the classification of pyroclasts, the petrographic and the petrogenetic classification of pyroclasic rocks.
中文: 长期以来，火山碎屑岩的分类研究受到了国内外学者的重视，先后提出了火山碎屑物、火山碎屑岩岩性和火山碎屑岩成因分类。
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英文: Phylogenetic classification systems attempt to reflect the evolutionary relationships of taxa.
中文: 系统发生分类系统试图反映分类群之间的进化关系。
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