The hospital ward building HVAC power construction drawing (crystallization operating room oxygen supply system), the total building area of the building is 45928m2, the building height is 76m, the basement is a garage, electromechanical equipment room, mortuary, etc. The basement garage is used as a medical aid for civil air defense in wartime. The first to second floors above the ground are: Inpatient Department Examination Room, Pathological Analysis Room, Central Disinfection Supply Room, etc; three layers