重点阐述了煤层顶底板工程地质特性；

Put focal point on coal seam roof and floor engineering geological characters.

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深入进行了郑西客运专线黄土工程地质特性分析与湿陷性评价。

The thorough analysis of engineering geological characteristics and the exact evaluation of collapsibility of loess related to zhengzhou-xi 'an passenger dedicated line.

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边坡岩体的工程地质特性对露天开采边坡角的选定及边坡的稳定性至关重要。

The engineering geology characteristics of the slope rock body are vital important for the selection of open-air mining slope Angle and the stability of the slope.

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