Hot vapor from this unit passes to the second-effect calandria and causes boiling in the secondevaporator.
从这台设备中出来的热蒸汽通进二效的列管换热器，使第二台蒸发器中的液体沸腾。
2
Second generator also helps to increase the pressure difference between evaporator and condenser to improve the performance of the whole cycle.
对冷凝器与蒸发器间压差的建立也起到一定的作用。
3
It then passes through a second heat exchanger, the evaporator, which transfers heat from the air to the refrigerant, reducing the temperature of this second body of air.