In conventional vapour-compression systems used by aircon units, the refrigerant is compressed and condensed and then expanded and evaporated to cool the room.
空调设备使用的传统的蒸发压缩循环系统中，冷却剂被压缩冷凝后膨胀气化来给房间制冷。
2
The room has aircon powered by Chevrolet, and ceiling fans apparently powered by Second World War Spitfires, while the lavatory has Lord Lucan water in it (it’s missing).
Travel in the developing world often involves appallingly long, uncomfortable bus journeys with speed-freak drivers, doubtful safety standards and aircon that is permanently set to 'Max'.