Product application domain: The robot, the precise automation control system, the medical instrument, the optical instrument, astronautics aviation, the police equip, the petroleum instrument, the intellectualized control, the vehicular traffic, electrically operated rapes, tubular electrical machinery, electrically operated execution, rotation advertisement machine, civil (automatic window blind, automatic valve, electric automobile hoisting jack, electronic remote control security door lock, automatic mahjong machine, IC card water/Electricity/Coal gas/Warm gas meter^)