短語詞組短語rill cut 傾斜分層;對角式分層rill wash [地質(zhì)]細溝沖刷;小溝沖蝕;細溝洗刷A Rill 一條小河untimbered rill 無支護對角工作面Rill Jul 同路過Rill Erodibility 細溝侵蝕Susan Rill 標簽rill storage 洼地儲水量Robert Rill 標簽rill erosion 細溝侵蝕,小溝沖蝕;帶狀溝蝕;細流沖蝕 返回 rill