Boom fluctuation signal control system of retail commerce monitors and regulates the boom process of retail commerce by using a group of red, yellow and green lamps.
零售商业景气波动的信号控制系统，通过一组指示灯信号系统来监测、调控零售商业景气运行的过程。
Boom fluctuation signal control system of retail commerce monitors and regulates the boom process of retail commerce by using a group of red, yellow and green lamps.
零售商业景气波动的信号控制系统，通过一组指示灯信号系统来监测、调控零售商业景气运行的过程。
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