Wiktionary
machine rooms
n. (machine room English)
Usage examples of "machine rooms".
It has been estimated that as many as five thousand or more homeless people have lived in the vast warren of underground tracks, subway tunnels, ancient aqueducts, coal tunnels, old sewers, abandoned stations and waiting rooms, disused gas mains, old machine rooms, and other spaces that riddle underground Manhattan.
Another corridor, this one broader, rooms off it leading to boiler rooms, machine rooms and store rooms.
It held the various maintenance and machine rooms, the air-conditioning and the nuclear generators.
It held the nuclear generators, various maintenance and machine rooms and the air-conditioning core.