短語詞組短語automatic c block system 鉄路自動閉塞系統(tǒng)automatic block system ABS 自動閉塞系統(tǒng)-display automatic block system 四顯示自動閉塞系統(tǒng)4 -display automatic block system 四顯示自動閉塞系統(tǒng)all -relay semi-automatic block system 繼電半自動閉塞block system automatic 自動閉塞制system automatic block 自動閉鎖系統(tǒng);自動閉塞制Automatic -block between railway stations system 站間自動閉塞系統(tǒng) 返回 automatic block system