摘要：空调机 = air conditioner空调外机 = air conditioner external unit空调内机 = air conditioner internal unit换气扇 = ventilation fa...

空调机 = air conditioner空调外机 = air conditioner external unit空调内机 = air conditioner internal unit换气扇 = ventilation fan一个完整的暖气，通风及空气调节系统被称为HVAC（Heating, Ventilation, Air-conditioning and Cooling）。