The people of Yenan and the Border Region have made great contributions to the whole nation.
2
该方法在陕甘宁中部气田气井试井分析中，得到较好的应用。
This method was well used in gas well test analysis in Zhongbu gas field in Shanganning Basin.
3
该地区解放后，陕甘宁边区在黄龙山垦区的基础上设立黄龙县。
After the liberation of the region, the Shaanxi-Kansu-Ningsia border region government in the Huanglong Mountain Reclamation established on the basis Huanglong.
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