A switching circuit, method and control unit (1) for controlling electric power supply for lighting fixtures.
一种用于控制用于照明设备的电源的开关电路，方法和控制单元(1)。
The invention provides an electromechanically integrated a. c. sampling unit applicable to measuring and controlling systems for power plant, substation and industrial electric equipment.
一种机电一体化交流电流采集单元，它适用于发电站、输变电站以及工业用电设备的测控设备中。
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