Determining the effectiveness of washing agents with colored mineral oil;

Analysis on direct foreign investment of china nonferrous metal mining;

In this paper,the present situation and latest advance of development in mining technology at home and abroad are introduced,the current developing situation of mining technology and existing problems in nonferrous mines of Hunan are analyzed and summarized,and some suggestions were give for the future development of mining technology in nonferrous mines of Hunan.

China's nonferrous mines play an important role in the development of national economics.

This paper finds out problems existed in the setting up of data base of nonferrous mines in China through analysis on the features of data processing in nonferrous mine and the condition both in China and abroad,gives some recommendation to set up the mine data base model so that the international competition ability of the enterprise would be improved.