trackagen.轨道总称(铁路线全长)trackn.轨道；跑道；踪迹；小路；乐曲v.追踪；跟踪track mounted jumbo轨道上行走的钻车track lever locking进路握柄锁闭Track Switch Divert轨道开关换向tracking distorbion随纹失真track lining device拨道器track etch analysis径迹蚀刻分析tracking distortion随纹失真track down the fact查寻事实track-and-fieldadj.田径运动的track return system路轨回疗