“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	unemployment insurance payment expiration unemployment insurance reemployment service unemployment insurance treatment unemployment rate unemployment ratio Unemployment Relief Camps unending decimal unenriched uranium unenumerated fundamental rights unequal unequal-armed unequal cleavage unequal crossing over unequal deformation unequal fission unequally distant unequal projection unequal strain unequal stress unequal subclasses unequal subclass numbers UNESCO UNESCO Asia-Pacific Awards for Cultural Heritage Conservation UNESCO Courier UNESCO Creative Cities Network

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。