“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	fire control radar fire control room firecracker graph firecracker vase Fire Curtain fire damage fire damage assessment method fire damper fire damper in smoke-venting system fired brick fire demand fire detection fire detection system fire detection technology fire detector fire detonator initiation fire disaster of grassland fire disturbance fire door set fire dragon fire dynamics fire effects on the stage fire elevator fire emergency broadcast system fire emergency lighting and evacuating system

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。