全空气式热力泵;
As we all know, air source heat pump application is limited in cold regions. In recent years, scholars have done a lot of research on the air-conditioning units in cold regions.
众所周知,空气源热泵在寒冷地区的应用受到限制,近些年国内学者在空气源低温适应性方面做了很多研究。
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