以下为句子列表：
英文: Methods Based on comprehensive analysis of isopaches, sadstone percentage, paleocurrent and sadstone content, a reaserch is made on the sedimentary environment of Upper Permian Shiqianfeng Formation in the southern of north China.
中文: 方法根据岩石碎屑组分基本数据，运用地层厚度、砂岩百分含量、古水流、砂岩成分的系统分析方法。
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