This article summarizes the development,the application and the newly-made progress of hydrogen peroxide on rocket propulsion technology.

At the background of new propulsion technology,such as microwave,laser,based on the aircraft particle dynamics model,using the sequential quadratic programming arithmetic to design and optimize the air craft s climb and loitering flight trajectories and the optimized trajectories are given by numerical simulation.

The paper introduces the application of expert system in drawing and some key technologies to establish drawing technology including feature based modeling, knowledge representation, knowledge acquisition and inference technology.

The knowledge representation,inference technology and function of the s ystem software are mainly discussed in the paper.

Higher vocational education should exert four main developing functions of education and training, technique popularization, base demonstration and information service to agglomerate and upgrade rural manpower.

Research and Application of Technology Extension Based Case-based Reasoning;

This article reviews the related documentation which has been done basic theory analysis about the agricultural machinery technology extension from two aspects that the process and mechanism of diffusion of agricultural machinery technology.

The significance of sheltered cultivation technology is discussed in the paper,and the main existing problems and the solving strategies are pointed out in the process of technology extension work.