On Drug Control Mission of China;

Exploration of mission statement from theory and practice;

The Responsibilities and Missions for Urban Planning and Design Institutes;

To learn to conduct oneself is the important task for the youths of today;

This paper explains the basic difference of eastern and western art culture in terms of historical materialism,analyzing the historical task that contemporary lacquer painters should carry out.

The future task of nationalities universities and the development of Dalian Nationalities University are predicted.

Main factors influencing the service life of solid caustic soda pots;

Discuss on how to improve the service life of injection mold;

Experiences of Prolonging Service Life of Profiled Reed of Air-jet Loom;

Study on technology of increasing working life of cold extrusion terne die;

Ways to improve the working life of casting roller;

The effect of surfacing process technology on the working life of a cylinder sleeve;

The life of die and choosing and treatment of die materials;

A large-scale study on the extension of activated carbon′s life;

After improvement of heat treatment of sliding boots bottom in MG300/700-WD coal-winning machine,organization of sliding boots' bottom could be improved,rigid and wear-resisting of sliding boots' bottom could be raised very much,sliding boots have high fatigue limit,life of sliding boots could be raised,productivity could be raised.