| Subject | English | Chinese |
| auto. | heating, ventilation, and air conditioning | 取暖、通风和空调 |
| hydroel.st. | heating, ventilation and air conditioning | 供暖、通风与空调 |
| hydroel.st. | heating, ventilation and air conditioning | 供暖通风与空调 |
| nucl.pow. | heating ventilation and air conditioning | 采暖通风及空调 |
| railw. | Heating Ventilation and Air Conditioning | 供暖系统 |
| nautic., tech. | heating, ventilation and air conditioning system | 取暖、风和空调系统 |
| nautic., tech. | heating, ventilation and air-condition | 采暖、通风和空调 |
| tech. | heating, ventilation and air-conditioning | 暖通调控 |
| railw. | HVAC Heating, Ventilation and Air Conditioning | 采暖、 空调、 通风 |
