retb的英文含义
1、retb的英文全称：Radio Electronic Token Block (radio-based signaling system for use on single line railways) 中文意思：无线电电子标记块(单线铁路上使用无线电信号系统)
retb的英文含义
1、retb的英文全称：Radio Electronic Token Block (radio-based signaling system for use on single line railways) 中文意思：无线电电子标记块(单线铁路上使用无线电信号系统)