According to the characteristics of HC step-down process,the pressure transients in the HC during step-down process can be divided into two processes,that is,the pressure transients before step-down motion and the pressure transients during step-down motion.

Study on catalytic photo-oxidation degradation of Shenfu coal by FTIR;

The degradation method of diphenyl ketone and TOC(Total Organic Carbon) in lithographic waste water.

However, the degradation of the films can advance or delay because of environmental factors, which hence influence the effect of films.

The electrochemical oxidation degradation process of phenol on diamond membrane electrode.;

It has been found that the thermal oxida-tion degradation process of Nylon 1010 is of three steps.

By studying the mechanism of B-TCP s degradation and ossification, completing three-dimensional simulation software through C++ and ACIS and showing the dynamic degradation process on screen, we can not only observe and investigate the changing process af.

We discuss the rheological properties, sedimentation process and fractal trait of nano-SiO_2 suspensions.

At present, the existing problems of subsidence process in our country's sugar mills are the long retention time of juice in subsider, which easy to cause the sucrose inverted resulting in much loss of sucrose, and the worse quality of clarified juice, the less density of mud juice.

Starting with rainfall, rainfall process, rainfall intensity etc.

Simulation tests indicate that the hydraulic and mechanical responses of the slope to a rainfall process is influenced by the initial permeability of the sand layer, the rainfall style and the rainfall amount.