连续式机车信号 approach continuous cab signaling: 接近连续式机车信号cab signaling inducter location: 机车信号作用点cab signaling testing section: 机车信号测试区段electromechanical cab signaling: 接触式机车信号设备inductive cab signaling: 感应式机车信号下载手机词典可随时随地查词查翻译