Based on the adaptive cycle model,the evolvement mechanism of social-ecological system was explored in a case study of Wangdong Village,Changwu County,Shaanxi Province.

The environmental worthiness requirements with respect to weapon materials;

In order to improve appearance of rifles and solve the problems of color degradation of rifle receiver made from aluminum alloy,environmental tests of actual technics and improved technics of aluminum alloy anodic oxidation were conducted,and environmental worthiness of the anodic oxidation films was evaluated.

This paper discusses some basic concepts on environmental worthiness and environmental engineering, and the relations between environmental worthiness and reliability.

Analysis of the environmental adaptability problem of stealthy coating in marine atmosphere;

Analysis of environmental adaptability for traditional dwellings;

Cohesive dust suppressant used in tailings dams and its environmental adaptability

Effective design and craft technol- ogy can improve significantly the environmental suitability of pro- duct.

The insufficiencies and the opportunities for improvement in current environmental suitability assurance technique for airborne electronics were presented.

This paper describes the affect on environment to weapon equipment,it analyses the climb environment and machine environment requirements for weapons of shipboard,and research this affect on weapon equipment,analyses the reason about bad environmental suitability,and improvement opinion was put forward of and special refer the important about that develop and research environmental suitability.