1.铁路全长里数
2.铁路线
3.轨道
1.railroad tracks collectively
2.the right of one railroad company to use tracks belonging to another company
3.a fee charged by one railroad company to another for use of its tracks
1.A Study of Welding Technology for Seamless Trackage
铁路无缝线路钢轨焊接技术的研究
2.Action of biological measures on trackage equipment protection
生物措施在铁路线路设备保护中的作用