ballast truck造句

例句与造句

1. Cooper ( 1924; p . 181 ) reports that when the rail embankment was first being constructed it subsided, burying ballast trucks in the swamp.
2. Initially 30 mineral and 20 cattle trucks were provided, along with 8 brake vans, 10 carriage trucks, 8 ballast trucks, and 2 timber trucks.
3. It's difficult to find ballast truck in a sentence. 用ballast truck造句挺难的