What does the indoor super-height area within 45 meters mean? How to define super high area

It is understood that the standard floor height of residential and mixed apartment buildings should be controlled within 3.6 meters. When the standard floor height is greater than 3.6 meters and less than or equal to 4.8 meters, regardless of whether there is an interlayer in the floor, the building area is calculated as 1.5 times the horizontal projected area of ??the floor; when the standard floor height is greater than 4.8 meters and less than or equal to When 5.4 meters, regardless of whether there is an interlayer in the floor, the building area is calculated as twice the horizontal projected area of ??the floor. When the standard floor height of a hotel-type apartment building is greater than 4.8 meters and less than or equal to 5.4 meters, regardless of whether there are partitions in the floor, the building area is calculated as 1.5 times the horizontal projected area of ??the floor; when the standard floor height is greater than 5.4 meters And when it is less than or equal to 6.6 meters, regardless of whether there is an interlayer in the layer, the building area is calculated as twice the horizontal projected area of ??the layer. The foyer, lobby, atrium, inner corridor, lighting hall, etc. are not included in the super-elevation range.