The temperature correction coefficients of all types of radiators are obtained in usual inlet and outlet temperature,and the correction coefficients can provide the gist for deploying all types of radiators in the project design.

In order to solve the difference of heating cost in different locations of residential buildings, introduces integrated correction coefficient and applies it in eight buildings.

Analysis on the gas pressure measurement result revision on the basis of gas loss quantity before bore being sealed;

Substitution and revisionof contour-pattern of downhole drilling motor;

Study on Revision Methods of Middle Line of Body-linking Sleeve;