"Diesel locomotives" refer to trains or locomotives that are powered by diesel engines.
Sentences with «diesel locomotives»
Because long stretches of its main line traverse areas without water, Santa Fe was one of the first buyers of diesel locomotives for freight service. (en.wikipedia.org)
I constantly thought of vintage diesel locomotives when gazing at the thing. (cnet.com)
The system is a working commuter route and is assisted by diesel locomotives. (greatrail.com)