在铁道部新的土分类标准中，细粒土由按单纯的塑性指数分类改为按塑性图分类。

In the new classification standard of soil adopted by the Railway Ministry, fine particle soils are classified by plastic index diagram instead of plastic index simply.

youdao

在铁道部新的土分类标准中，细粒土由按单纯的塑性指数分类改为按塑性图分类。

In the new classification standard of soil adopted by the Railway Ministry, fine particle soils are classified by plastic index diagram instead of plastic index simply.

youdao