“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	Preservation of Historic Centre of Kraków preservation of leather collection preservation of length preservation of limits preservation of liquid preparations preservation of metallic collection preservation of obligation preservation of oil paintings Preservation of Old and New Towns of Edinburgh preservation of photographic data preservation of textiles Preservation of the Old City of Berne preservation & reformatting Section of American Library Association(PARS) preservation strategy preservation techniques of cultural relics preservation technology of agricultural products preservation wood preservative preservative of taxation preservative of timber structure preservative treated wood preservatize preservatory preserved context index preserved corpse

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