Grey system models have been used in many problems of hydrogeology, engineeringgeology, environmental geology and mineral deposit predictions.
灰色系统理论在水文地质、工程地质、环境地质和矿床预测的很多问题中得到应用。
2
Its main content includes: (1) Comprehensively to studies the area the physical geography and the engineeringgeologyenvironmental condition conducts the analysis research.
其主要内容包括：(1)全面对研究区的自然地理及工程地质环境条件进行分析研究。
3
The shallow seismic refraction method is one of the main methods of exploration for engineering, hydrogeological andenvironmentalgeology.