“semi-automatic block”的概念、定义、翻译、参考文献-科学参考

单词	semi-automatic block
释义	semi-automatic block Encyclopedia 工学铁路区间闭塞释 semi-automatic block半自动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，自动开放、关闭出发信号机的闭塞方式。
随便看	pion condensation pion decay Pioneer pioneer Pioneer-0 probe Pioneer 10/11 Pioneer-10 Probe Pioneer Bookstore Pioneering High Energy Nuclear Interaction experiment pioneering morality pioneer plant pioneer plant community pioneer plants Pioneer probe Pioneers pioneer species Pioneer-Venus Pioneer Venus Multiprobe Pioneer-Venus probe pion factory pionic atom pionium pionization pion-minus pionnotes

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