“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	isotope tracing mass spectrometry isotopic isotopic abundance isotopically labeled compound isotopically labelled reagent isotopically modified compound isotopically substituted compound isotopically unmodified compound isotopic analog state isotopic analysis isotopic braids isotopic carrier isotopic chrono1ogy isotopic cluster ion isotopic composition isotopic content isotopic correlation safeguards technique isotopic dating isotopic deformation isotopic diffeomorphism isotopic differential embedding isotopic dilution mass spectrometry isotopic dilution mass spectrometry (IDMS) isotopic distribution isotopic effect

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