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1·Widely applies in the piano, acoustic, the packing, the windows and doors, the industrial art, professions and so on electronic circuit board, indoor outside repair.

广泛应用于钢琴、音响、包装、门窗、工艺美术、电子线路板、室内外装修等行业。

2·The system comprises a virtual key partition board, a transmitting circuit, the receiving circuit, a signal central processor, an acoustic-optic display module, an actuator and the like.

虚拟按键隔板、发射电路、接收电路、信号中央处理器、声光显示模块、执行器等。