ADSL terminal unit - remote
ADSL transceiver unit-remote terminal end
ATU-R ADSL Transceiver Unit Remote
handshake transceiver unit-remote terminal end
radio remote unit and base band unit
xDSL transceiver unit-remote terminal end
a large vertical pump unit
Administrative Unit Group AUG
Air Source Heat Pump Unit
空气源热泵系统
风冷热泵机组
空气源热泵机组
空气源热泵热水机组
Air-cooled heat pump unit
air-source heat pump unit
Air-to-water heat pump unit
big pump unit parallel running