“manual block”的概念、定义、翻译、参考文献-科学参考

单词	manual block
释义	manual block Encyclopedia 工学铁路区间闭塞释 manual block人工闭塞人工确认相邻两铁路车站间区间线路空闲、办理和解除闭塞，且在值班员与司机间人工交接行车凭证的闭塞方式。
随便看	T-union Tunis Tunis Afrique Presse Tunis Broadcasting Service Tunisia Tunisian dance Tunisian Drama Tunisians T-universals Tunji Otegbeye Tunkinsky National Park Tunliu Qu tunnel tunnel advanced detection tunnel and underground engineering tunnel-borehole-surface electromagnetic instrument tunnel boring machine tunnel boring machine carrier seismic wave method tunnel boring machine jamming tunnel boring machine method tunnel boring machine rock breaking earthquake focus method tunnel boring machine submergence tunnel breakdown tunnel by drilling and blasting tunnel by pipe jacking

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