线路(In communications, a connection, usually a physical wire or other cable, between sending and receiving (or calling and called) devices, including telephones, computers, and terminals)
行(In word processing, a string of characters displayed or printed in a single horizontal row); 线(A vector path defined by two points and a straight or curved segment between them); 线路？(In a SONET network, a segment that runs between two multiplexers)
