英语词汇controlled block是什么意思，controlled block的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	controlled block
释义	controlled block　已经关闭信号的闭塞区段[区间]联锁[半自动]闭塞
随便看	long shillings long ship long short story long shot long shot long shot long shot long shunt long shunt winding long side long side long side long sight long sight long silence long since long since long since long skip long skirt crown long sleeve long socks long spacing long span long span culvert

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