flatcar
/ˈflætkɑː(r)/ (bre, ipa) · /ˈflætkɑːr/ (ame, ipa) · /ˈflat-ˌkär/ (ame, mw)
flatcar — noun
1. a train car with a flat floor and no roof or walls, designed for carrying large
a train car with a flat floor and no roof or walls, designed for carrying large or heavy items such as vehicles, pipes, or building materials
The crane lifted the steel beams onto the flatcar before the train left.
collocation: lift/load onto a flatcar
Each flatcar on the freight train carried two cars from the factory to the port.
flatcar as subject + carrying [goods]
Rail workers used flatcars to transport large pipes across the desert route.
A flatcar loaded with timber derailed near the river crossing last night.
The railway company ordered fifty new flatcars for moving construction equipment.
用法筆記
Flatcar is a countable noun. It is a specialized term used mainly in railway and freight transport contexts. In informal American English, it is sometimes shortened to flat.