Key Techniques in High Speed and Precision Grinding of Cam Axes;

Design scheme and key techniques for mechanical wireless inclinometer;

Key techniques for improving accuracy and benefits of progressive exploration in the complicated fault block areas of Jizhong region;

Design and key technology of mine low voltage intelligent controlled switch;

High speed milling machining and key technology system of mould;

Status and development of the precise progressive die key technology of the IT products;

Key Techniques of Wenxi Copmlex Zone in Rolling Exploration and Development;

The Current State and Key Technique of High Speed Machining;

How to Deep-going Grasp Some of the Key Technique of Semi-Solid Processing (SSP);

Performance and key technology of renewable gypsum concrete

The feasibility,features,basic principles,craft diagram,key technology and application condition are analyzed and the prevention measures of gas,coal spontaneous combustion and water irruption in gob are also introduced.

The key technology of improving the quality of new type liquor includes:①Design a perfect liquor style based on the market investigation.

According to the actual experience, The processing technologies and their key techniques of new type glue-laminated bamboo furniture are raised to accelerate the exploitation and development of new type glue-laminated bamboo furniture ,to promote the development of Chinese furniture industry, and further improve the bamboo additional value.

Combined with new tendency and practice in internal combustion engine industry at home and abroad in recent years,this paper suggests that machining cone of intake and exhaust valve seat insert and guide tube hole is the key technique in machining complicated cylider-head.

Based on numerous experiments, the description of the key technique for mixing the storable asphalt mixture and problems to be noticed in its practical application is given, including the study and verification of a systematic method for appraisal of itS performance.