energy-saving pump

• 节能泵

energy-saving pump的用法和样例：

例句

1. And the energy-saving ground-source heat pump construction technology is utilized for the first time in Yueyang and will be promoted among other provinces and cities in China.
   地源热泵施工技术节能环保，在岳阳属于首次，在国内处于推广阶段。