Additional examples are adjusted to the entries in an automated way - we cannot guarantee that they are correct.
It must also be open in design or that uses forced air circulation to maximize ramp rates.
Early vacuum-tube computers, with relatively large cabinets, could rely on natural or forced air circulation for cooling.
The ventilation system with forced air circulation is intended to supply fresh air into the crew compartment and to remove powder gases when the troops fire their small arms when the filtering and ventilating unit is switched off.