1)track,线路设备2)transmission line device,输电线路设备3)power failure circuit(equipment),停电线路（设备）4)called line identification facility,识别被呼叫线路设备5)calling line identification facility,识别呼叫线路设备6)line-equipment balancing network,线路设备平衡网络
用法和例句
This paper analyzes the basic technology of GIS and MapX,reserches how to utilize the graphics library of transmission line device.