A ultrasonic skeleton surgical apparatus, a measuring system of miniature exercising postures (direction and level measurement), a electrical stimulating apparatus of functional nerves and muscles.

In her spare time, ma Kam-yee she went sketchbooks, careful observation of the forest birds, a variety of gestures to keep drawing down, as a creative material.

INNER LOOP control, For autopilot operation this is the basis control of airplane pitch and roll attitude without regard to flight path.