Electronic modules, instead of traditional relays, perform directly the control of switches, signals and retarders and identification of the status of the track circuits.
电子模块取代原有的继电器，直接实现对道岔、信号机、减速器的控制和对轨道电路的状态识别。
Is a collection of scientific research, development, production and marketing of solid state relays and power electronic modules as one of the hi-tech enterprises.
是一家集科研、开发、生产和销售固态继电器和电力电子模块为一体的高新科技企业。
Is a collection of scientific research, development, production and marketing of solid state relays and power electronic modules as one of the hi-tech enterprises.
是一家集科研、开发、生产和销售固态继电器和电力电子模块为一体的高新科技企业。
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