Therefore, more concretely discussing the strength softening characteristic of collapsible loess on primary basis has specially important significance.

因此，在已有基础上进一步深入探讨湿陷性黄土的强度软化特性具有特殊的重要意义。

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This paper mainly studies the strength softening characteristic of loess-like soil by triaxial shear test on the basis of primary research productions of loess.

本文在黄土已有研究成果的基础上，通过三轴剪切试验对类黄土(黄土状土)的强度软化特性进行了重点研究。

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Water is the primary limiting factor for forest and grass vegetation construction in semi-acid soils of the Loess Plateau area.

水分是黄土高原半干旱区林草植被建设的主要限制因子。

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