The essay is to narrate the issues of the origin,development,eugenic measures and dispute of ethics.

Facing the problem of short effective time of hydraulic fracturing and chemical broken down in polymer injection wells,this paper analyzes the geologic status and dynamic and static data of 92 chemical broken down wells operated in 2000 and 2001 in 10 polymer flooded blocks, constructs a set of technique for diagnosis and stimulation optimization for polymer injection wells plug.

In order to enhance the people\'s shopping enthusiasm in underground space and increase their comfort and jollity,a series of optimization measures for improving the underground interior environment have been put forward with reference to some overseas project examples.

The optimization measures of structural design of the gravity waste dam are put forward.

Optimized Measures in the Development of Campus Geographical Information System Based on MapX;

Analysis and optimized measures for the energy conservation and consumption reduction of 600 MW thermal power units

Problems of 300 MW turbine lubricant system during commissioning are analyzed,then optimized measures are raised,for lubricant system to be perfected,and to be improved the safety and reliability of system operation.

The production practice show that the better effect can be obtained by taking optimizing measures.

Based on studing fifty key towns in Hebei Province,this paper built up the evaluation system of the towns with ten indexes,and with the method of Fuzzy Mathematics Analysis by SPSS software,it calculated that the level of urbanization in different towns and finally pointed out the optimizing measures toward the features of poor quality of urbanization in Hebei Province.

and had indeed put forward some ameliorating suggestions and optimizing measures.