资料来源 : pyDict

铁路轨道;铁路全长里数

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Trackage \Track"age\, n. (Railroads)
   Lines of track, collectively; as, an extensive trackage.

Trackage \Track"age\, n.
   The act of tracking, or towing, as a boat; towage.