“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	Periodization of History periodization of multi-year training period lattice period length Period life table period-luminosity-color relation period-luminosity curve period-luminosity relation period mapping period-mass relation period matrix period-mean density relation period module period-n-tupling bifurcation period of a circulating decimal period of a class period of a continued fraction period of a decimal fraction period of a differential period of a function period of a group period of alternating current period of an element period of an ergodic class period of an oscillation

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