短語詞組短語rill gully soil erosion 溯源侵蝕Rill erosion process 細溝侵蝕過程rill erosion zone 細溝侵蝕帶rill erosion model 細溝侵蝕模型rill erosion intensity 細溝侵蝕強度rill width of erosion 細溝侵蝕寬度rill erosion and sediment 細溝侵蝕產(chǎn)沙critical acondition of rill erosion 臨界能量條件estimation of rill erosion ratio 溝蝕率估算 返回 rill erosion