Milt, Anit-Det runs or ‘Anti Deterioration’ runs are done to cycle all the critical lubricated components on and airframe in a controlled and regulated manner usually to a schedule, This can take from a few minutes to a couple of hours to accomplish and involves normally running up all the hydraulic, fuel, air and electrical systems, and grease and oil as required, again to a schedule laid down for each aircraft.
The results of this effort will be that all the seals are flushed with fluids to ensure they do not dry out and any sediments pulled to the filters, that any leakage can be detected for rectification and that all systems operate as they are supposed too, all pressures, temperatures and voltage/amps can be recorded and this will give an insight into the general condition of things.
From memory I recall the schedules laid out for an L1011 were spread over several dozen pages and did not always require the engines to be spooled up as long as ground services were available, not having seen those for the Vulcan I would guess they are similar in make up though now the airframe has been slimmed down some not as extensive.
By this means an airframe can be stored for long periods without flying at all as long as the runs are done and booked items maintained to schedule, in a very short period of time the aircraft can be brought back into service again signed off and flown.