A rotten little sealed unit the size of a large suitcase could mess up her whole plan.
"They don't want us taking a sealed unit to Secundus."
The station should have facilitated our repairs, or at least sold us the sealed unit.
Major Douglas, still in a sealed medical unit, should have been the one.
He couldn't have left the module; it was a sealed unit.
The centerpiece was a sealed unit the size of a small room.
The toilet tank was a sealed unit behind the wall.
The warehouse seemed to be one big sealed unit.
They were looking intently at something in a sealed unit with remote-control arms.
The computer was a sealed unit, but it had a small display screen and test points, allowing access for repairs.
