County surrounded by mountains, the territory of diverse terrain, for the south-central hilly areas in the eastern and northern mountainous deep valley, the mountains to the west basin.
县境四周环山，境内地形多样，中南部为低山丘陵区，东部、北部山多谷深，西部为山间盆地。
Flash flood is a kind of sudden flood which is caused by the sudden rainfall, rises up and down sharply in the basin hilly and mountainous areas.
山洪是山丘区中流域由降雨引起的突发性、暴涨暴落的洪水。
Flash flood is a kind of sudden flood which is caused by the sudden rainfall, rises up and down sharply in the basin hilly and mountainous areas.
山洪是山丘区中流域由降雨引起的突发性、暴涨暴落的洪水。
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