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To this end, teachers use their spare time professional ministry conducted a series of experiments in teaching technology innovation. Introduction of these innovations are teaching experimental device. First, the experimental device attempts to make the first phase of "electrical operation and control" programs and courses motor  Voltage stabilizer  control relay can be well carried out integrated teaching, it has n variable function of the 2n minterms organizations arranged in a grid  electri cenergy meter  in the adjacent minimum term (with adjacent items) using adjacency law simplification in 2003 made ​​50 relay contacts multifunction control panel, four M7120 surface grinder, 4 X62W universal milling machine electrical control simulation board.