two-stage compression heat pump的意思|示意

二级压缩循环 ... Dunoyers two-stage pump 迪努耶尔两级扩散泵 two-stage compression heat pump 二级压缩循环 Two-stage centrifugal pump 两级离心泵 ...

二级压缩式热泵 ... Three Screw Pump 三螺杆泵 收藏 two-stage compression heat pump 二级压缩式热泵 收藏 advanced timing 提前定时; 提前正时 收藏 ...