Ducted air - conditioners and air - to - air heat pumps - testing and rating for performance 管道通风空调和空气对空气热泵.性能的试验和额定值
2.
Water - source heat pumps - testing and rating for performance : part 1 - water - to - air and brine - to - air heat pumps 水源热力泵.性能试验和额定值测量.第1部分:水-空气和盐水-空气热力泵