建筑供暖通风空调净化设备 计量单位及符号
Heating, ventilation, air conditioning and air cleaning equipment in building—Units and symbols

2023-05-23

单元式通风空调用空气-空气热交换机组
Air-to-air heat exchanger unit for ventilation and air-conditioning

2015-05-15

Graphic Symbols for Heating, Ventilating, and Air Conditioning
供暖、通风和空调用图形符号

1949-01-01

Early Heating, Ventilating, and Air Conditioning in the United Kingdom
英国早期的供暖、通风和空调

石油化工采暖通风与空气调节设计图例及代号
Design symbols and alphabet code for heating,ventilation and air conditioning in petrochemical industry

2017-04-12

Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)
机械符号、船上加热、通风和空调（HVAC）的标准实施规程

2022-10-01