The paper deals with the rules and methods followed by scientific classification ofChinese sports activities, and presents the idea that the sports activities should be classified by differ-ent needs of the development of the sports activities,and sets up classification system which serves forvarious practical purposes.

The history of scientific classification can be roughly divided into three periods in ancient times,contemporary times and modern times.

The importance of in academic essay and subject classification was analyzed.

Combines student subject specialty characteristics with school district,proceeds the subject classification to the student,at the same time,divide the level of the Internet technology,formed Internet technology teaching characteristic feature with subject classification and Layer Partition.

Studies on the theoretical framework of modern separation science;

Peered Separation Science Technolo gy--Countercurrent Chromatography Technique;

The needs and development of separation science and technology are reviewed, In view of developing the biotechnology and material science, especially preparating superpure materials, protecting and improving the environment.

In this paper,progress in some aspects of analytical sciences have been reviewed,and the trends of their developments have been discussed.

Molecular chemical engineering, an emerging engineering and technical science , gradually came into being when using the achievements and research methods of molecular science and molecular engineering to seek the principles of chemical engineering.