“clock system of urban rail transit magnetic”的概念、定义、翻译、参考文献-科学参考

单词	clock system of urban rail transit magnetic
释义	clock system of urban rail transit magnetic Encyclopedia 工学城市轨道交通通信系统释 clock system of urban rail transit magnetic城市轨道交通时钟系统为地铁运营提供统一的标准时间信息，为其他系统提供统一的时间信号的系统。
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