通过在热响应试验孔内埋设温度传感器，并且在孔内的PE管上部40m深度范围内逐点下放测温探头的机动测温，对42眼地埋管热响应试验孔进......

On the basis of a one-by-one latitude-longitude grid three-dimensional seismic velocity model, the crustal Pwave velocit......