4.The practice of subterrene drilling indicates that this method not only adapts to geothermal well, but also is a new pipeless reinforcement method to be applied widely.
熔钻进的实践证明,该方法不仅适用于地钻井,而且也以作为一种新的无套管护壁方法推广应用。
5.The geothermal anomaly, low velocity zone and high conductivity layer in crust, and frequent occurrence of strong earthquakes show that the study area is an active area of modern tectonization.