Air Source Heat Pump Water Heater
Air-source Heat Pump Water Heater
空气源热泵热水器
空气源热泵热水机
空气源热泵热水机组
空气源热水机组
the air-source heat pump water heating equipments
Ground resource heat pump
AC photovoltaic water pump system
Academy of Water Resource Conservation Forests in Qilian Mountains of Gansu Province
Agricultural water resource
air to water heat exchanger
available water resource