“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	Great Charity Chinese Opera great chiliocosm Great China Baihe Film Company Great China Record Co. Great China University great circle great circle girdle great circle sailing chart great circular arc Great Ci’en temple Great cluster of Hercules Great Coalition Great Cold Spot Great Council of Chiefs great countries' accord, principle of Great Dance Great Dane Great Dark Spot Great Depression in America Great Depression in Canada great depression of British agriculture great desert Great Dictionary of Chinese Taoism Great Didactics Great Divergence

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