“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	green-glazed dramatic building earthenware of the Eastern Han Dynasty green GNP Green Grass, Running Water green gross domestic product green haired turtle green harbor green hay Greenhill green hospital greenhouse greenhouse carbon dioxide flux greenhouse climate greenhouse CO2 measure greenhouse combined forced ventilation greenhouse cooling green house effect greenhouse effect greenhouse effect of landfill gas greenhouse environment parameter monitor greenhouse facilities greenhouse flowers greenhouse forced ventilation greenhouse fugitive emissions green house gas greenhouse gas

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