[Velopharyngopalatine myoclonus of probable epileptic origin].

According to the increasing groundwater exploitation, this paper is an attempt to establish the hydro geological conceptual model of dry regions, and carries on the numerical simulation of groundwater flow by using the Visual MODFLOW, which is international standard software. The mathematical model established in this paper has reflected the local practical hydro geological conditions and can be used to predict and manage groundwater resources.