Located in central Gansu Province, Dingxi City West, is the southern gate of the provincial capital Lanzhou.
位于甘肃省中部，定西市西部，是省会兰州的南大门。
Objective to survey the prevalence of Helicobacter Pylori (HP) infection and its relation to gastroduodenal diseases of pupils in Huining County in the central arid mountain area of Gansu Province.
目的调查甘肃中部干旱山区会宁县小学生幽门螺杆菌(Hp)的感染状况及与胃肠道疾病的关系。
Hexi corridor in northwest Gansu Province, Zhangye City, the central corridor, "two Mountains folders a River" obvious characteristics of the terrain contour.
河西走廊位于甘肃省西北部，走廊中部哒张掖市“二山夹一川”哒地形轮廓特征明显。
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