buried copper

The direct-expansion heat pump ( DXHP) is a special kind of ground-source heat pump which uses a buried copper piping network through which refrigerant is circulated.

直接膨胀式地源热泵是土壤源热泵的一种特殊形式。

It is believed that the basalt in the area is characterized by continental tholeiite and the copper deposit belongs to a basalt type copper deposit formed by syn-volcanic hydrothermal mineralization superimposed by buried metamorphic transformation.

研究认为，本区玄武岩具大陆拉斑玄武岩特征，铜矿属火山同生热液成矿叠加埋藏变质作用改造形成的玄武岩铜矿。

Construction of Buried Copper Internal Gas Pipe

暗埋铜质室内燃气管道的施工

The thermal properties and deformation of new type cast copper stave with buried copper pipe were studied.

系统分析了高炉用新型埋管式铸铜冷却壁的热态性能及热变形。

Application of Induced Polarization Method in Forecasting Buried Mine in a Copper Deposit

激电极化法在滇西北八宝山铜矿床隐伏矿预测中的应用

Application of DC methods to searching for deep buried deposit in a copper deposit in south Shaanxi and it's application result

直流电法在陕南某铜矿深部找矿中的应用及效果

A Study on Hot Test and Thermal Stress and Distortion of Cast Copper Staves with Buried Copper Pipes

埋纯铜管铸铜冷却壁热态试验和热应力热变形研究