With the comparison of the DVM system and the Frequency conversion multi connected system on energy cost characteristic, the energy saving effect of the DVM system is approved. 本文将数码涡旋多联式空调系统与变频多联式空调系统在能耗特性方面进行了比较以论证其节能特性。
energy consumption characteristics怎么读 energy consumption characteristics是什么意思
