桂林红土的这些工程地质特征主要由其特殊的成土环境条件所决定。

All engineering characteristics of Guilin laterite were completely depended on the forming environment of the laterite.

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桂林地区的红土砾石层以其独特的工程地质特征引起了许多中外学者的注意，对它的成因至今还存在争议。

Red clay gravel bed in Guilin area attracts many attentions to its engineering-geological characteracteristics. But its genesis is still in controversy.

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