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列车运行自动控制系统(简称列控系统)是保证列车按照( )技术方法。
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列车运行自动控制系统(简称列控系统)是保证列车按照( )技术方法。
A、时间间隔控制
B、空间间隔控制
C、时间间隔+空间间隔控制
D、速度等级控制
时间:2021-09-01 23:39
关键词:
青书学堂
黑龙江科技大学
信号与
(专升本)
答案解析
B
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列车运行自动控制系统(简称列控系统)是保证列车按照( )技术方法。
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输出继电器(OR)通过一对()触点将PLC的控制信号传递给负载。
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