Is the existing root zone high in silt and clay?

当前的根系层是否高含淤泥和粘土？

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The thrust nappe is assembled by root zone, major thrust zone and thrust front.

逆冲推覆体由根带、主逆冲带和逆冲传播前缘带三部分组成。

youdao

The thrust nappe is assembled by root zone, major thrust zone and thrust front.

逆冲推覆体由根带、主逆冲带和逆冲传播前缘带三部分组成。

youdao