Apa arti 'Maintenance' di game?

maintenance slotMaintenance Slot DXL diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6. 3.3. Equipment componentsA slot is a submaintenance location, which can represent a maintenance road within a rail depot or an area of an aircraft hangar where maintenance activities