n.有轨电车；矿车
The new Chinese first tramcar is born in Changchun. 新中国第一辆有轨电车在长春诞生。
If the tramcar runs over speed, then an alarm is given. 若矿车超速，则有报警信号发出。
Meanwhile, the suitable conductors and detectors were chosen according to the result of tramcar locating analysis. 根据矿车对位的分析结果，配置了相应的传感器和检测装置。
