题目内容

CTCS-2级是基于轨道电路和应答器传输 ,并采用 速度控制模式监控列车安全运行的列控系统。

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TCC 根据列车进路和轨道区段状态等信息,实现站内和区间轨道电路的 编码功能,并按控制轨道电路的 。

列车进路没有开放时,TCC 向股道发送 码或检测码(低频值为 Hz),道岔区段发送检测码。

According to the dictionary named The Random House Dictionary of the English Language, communication is derived from the Latin word communicare which means “to ___________” or “to ___________.”

Communication includes nine components, they are: sender/source, __________, channel, message, __________, __________, feedback, noise, __________.

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