In order not to disturb the research work when the crucible for the VIM furnace is overhauled,engineers of the institute independently developed a spare crucible after they had carefully studied technique of the imported one.

This paper introduces how to make crucibles for 4.

The furnace can combine the advantages of crucible and electrical melting furnace,which have the virtues of better glass quality,manageable and easy to change product and furnace lining.

Significant demand and key problems of membrane science and technology applying to pharmaceutical industry of Chinese materia medica

The key problems in ceramic forming process are also indicated.

The paper put forwards the design scheme of the thin bed sonic logging tool, and also discusses the key problems and the solutions.

In recent years,the study on mine ventilation and safety management system had attracted much attention of experts and scholars and also already got some very important achievements,but still some key issues or technologies on developing the visual mine ventilation simulation system(VMVSS) should be solved or improved.

Based on the completion rate of the pollution control project and the current water quality of Nansi Lake, the key issues influencing the water quality improvement, including industrial pollution source, urban environmental infrastructu.

Some study has been made on aspects such as reform objective, reform methods, key issues, implemental scheme and implemental route for cultivating teaching staff of civil engineering.

Research on some key problems of foundation design module based on GIS;

Analysis of reasons and key problems for agent construction management in water resource public-spirited project;

Discussion on the key problems of large combined cycle power plant;

Calculating model and key questions about carrying capacity of water resources;