With the continuous development of the economy,the power utilization environment in China differs from one place to another;therefore,AC electromagnetic contactors can be used widely in electric control.

Generating conditions and properties of the thermo-α-amylase from a strain and environmental application of the strain;

Security system of application environment isolation based on application protocols;

The dynamic parameters test based on the application environment, because the continuous time of dynamic test on the dynamic parameters is very short and the frequency components are abundant, puts forward higher requirements for the test precision.

The paper designed a special calibration system combining a specific application environment,introduced the theory of emendation system,analysed the influence of different environments and design scheme.

Classification of environment action on coastal concrete structure in durability design;

To determine the environment action on the durability of coastal concrete structure, the effect of coastal atmospheric, geology and seawater environment on the coastal concrete structure was examined.

This article inquires into the environmental effect of the community development on the school psychological education in the perspective of the development of economy, culture and education.

But because of the immobilization of buildings,the buildings strengthened with CFRP will still experience all kinds of environmental effect.

Research purposes: The various influences of the environmental effects on preliminary bracing and secondary lining of mountain composite lining tunnels exist,especially on young sprayed concrete.