The partitioning and regional distribution of 5 trace elements in soils from Yellow River, Yangtze River and Pearl River Deltas were studied.
本文对黄河、长江、珠江三角洲土壤中5种微量元素的形态分配及其地理分布趋势进行了研究。
The geographic distribution of regional soils such as loess soil, laterite soil andexpansive soil in China and their special engineering properties are briefly described in this paper.
文章论述了我国地区性土（黄土、红土和胀缩土）的地理分布和工程地质特性，分析了各类地区性土的物质成分和微结构特征以及它们的区域性变化规律。
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