求翻译：项目区沿线地表水系发育，河流下切侵蚀强烈。峰谷相对高差100～200m左右，为高中山地峡谷区及低缓丘陵区，地形起伏，冲沟发育。乌多姆塞为沿线最大的山间凹陷盆地，面积约 70平方公里。路线所经地形，中高山地貌占70%，中低山地貌占25%，盆地微丘地貌段约占5%。是什么意思？

Along the project area, surface water development, erosion of river incision strong. The relative height difference of about 100 ~ 200m peak and valley high school mountain gorge area and low and hilly, undulating terrain, gullies development. The Wuduomusai sag basin along the largest mountain area

Surface water systems project area along the river developed, all erosion strongly. At relatively high difference between about 100 to 200 M, the mountain valley High School District and the low-down Hills area, rolling terrain, Ridge development. Oudomxai along for most of the mountains, sunken bas

Project area surface river system growth, the rivers undercut the corrosion to be intense along the route.About peak valley height relationship 100~200m, for the high school mountainous region canyon area and the low and drawn out rolling country, the hypsography, flushes the ditch growth.Wu Duomu f

Development of surface water system in project areas along the rivers cutting erosion under strong. Peak and Valley of relative height difference 100~200m around for high mountain valleys in hilly area and low, undulating topography, development of gullies. Oudomxai along the largest SAG basins betw

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