They went to a part of the fort which had been specially cleaned and provisioned for meetings during the visit.

It has also been cleaned during the recent restoration.

Files have to be cleaned during use to prevent their teeth from becoming clogged.

Since cars were parked against the wall during the day, the graffiti could be cleaned only during the weekend.

Washrooms will also be cleaned every 90 minutes during system hours to ensure they are clean as possible.

I am confident that it was cleaned at some point during this period.

The others should have been cleaned during the evening shift.

The goblet looked like it hadn't been cleaned any time during the past decade.

The problem was found to be caused by the catch not being cleaned and lubricated during servicing.

The unit can also be cleaned during a turnaround or by raising the exhaust temperature.