In some cases another type of car is temporarily converted to one of these for an event.
Some clerical offices have been temporarily converted to academic space.
Several carriages have been temporarily converted to include a guard's compartment.
"I'm quite prepared," she said at last, "to be temporarily converted."
Tanforan was temporarily converted into a military training center during World War I.
The room had the usual disheveled look of a living room temporarily converted for slumber.
The baggage area of the train station has been temporarily converted into a waiting lounge to accommodate Amtrak's passengers.
The town's gymnasium was temporarily converted into classrooms.
Hampden will be temporarily converted into an athletics stadium for the 2014 Commonwealth Games.
During gas molecule collisions, kinetic energy is temporarily converted into potential energy.