The demonstration device of hydraulic transmission controlled by single chip;

This paper describes the basic construction and controlling principle of the magnetic suspended rotor system demonstration device for popular science.

Flash visual programming language is used to develop teaching uxiliary software forhorizontal projectile motion, which solves some problems of demonstrating experiments in physics teaching, stresses the teaching key points, and also makes a breakthrough in solving some teaching difficult points.

Development of velocity control unit of body-building equipment;