Since crustal tilt was determined by ground gravimetrial data and gravity vertical deflection data together,the assumption and proposition were proposed on forecasting earthquakes epicenter by "gravity direction intersection method",and relational discussion and experiment were carried out.

This paper,based on the formulation of slope characteristics for the aerial tower construction,introduced the principle of the slope change,the visualized step and the accuracy calculation for the observation method of direction difference intersection.

Research on microstructure and properties along gravitational direction of ceramic layer produced by static SHS technique;

In order to increase the efficiency of the gravity method in studying the structural characteristics of the Pre-Cenozoic basement in Vietnam,the authors have formulated a methodological system of integrated analysis of geologic and geophysical data.