| 释义 |
tracklayer
\ˈ ̷ ̷ˌ ̷ ̷( ̷ ̷)\ noun
1.
a. : a workman engaged in work involved in putting railway tracks in place
b. : a machine used in track construction for advancing the rails and ties from supply cars in the rear to the point where they are to be placed in the track
2. : a Caterpillar tractor |