According to the condition at open_working area and the engineering requirement at Ni Zu Tang Mine of Lian Ping county, it is more beneficial to the low of the underground water level at the open-working area and the dewater of the working area at the deep pit mine for the change of the traditional pump and drainage at the deep pit mine working area into drainage of the underground well_point.

Study on Stable Carbon Isotopic Compositions of n-alkanes and Isoprenoids for Crude Oils from Well Lunnan 14, Tarim Basin;