On the Methods to Keep Satellite/Ground Clocks Synchronous Accurately;

Studying of quality problem in cement ground;

The Formula Derivation from the Interaction Between the Free Falling Object and the Ground Force;

It gives an account of the environmental effect discrepancies done by surface and underground oil storage tanks,the relevant stipulations of Environmental Protection Agency(EPA),oil pollution law,National Pollutant Discharge Elimination System(NPDES)and so on.

Through discussing the quality status,the error categories of Guangxi historical surface meteorological data and its cause,it is advantageous to users in processing data objectively.

Study on the causes of floor leakage in kitchen and toilet and preventive measures;

Quality problems of cement concrete floor and prevention measures thereof;

Development and design of automatic floor cleaning machine;

The self-test unit for EILog complete logging equipment is the complement and improvement to the function of EILog complete logging equipment, which receives surface system instruction through simulating downhole instruments, simul.

Several types of logging digital imaging surface systems such as MAXIS 500,ECLIPS,EXCELL 2000,which produced by foreign logging company recently,are introduced.

Preventing land subsidence by wastewater reuse in Taiyuan;

Effect of groundwater exploitation on land subsidence in Tianjin using multiple regression analysis method;

Study of urban land subsidence information management and prediction system based on GIS;