In a brief, soil is the products of weathering ck roc 坡积土 洪积土 冲积土 运积土{湖泊沼泽沉积土工程性质差 海相沉积土 冰积土 风积土 西北黄土 残积土 运积土: Transported soil 残积土: Residual soil                        残积土 风积土 西北黄土 冰积土 海相沉积土 湖泊沼泽沉积土 工程性质差 冲积土 洪积土 坡积土 运积土 运积土: Transported soil 残积土: Residual soil 一、 In a brief , soil is the products of weathering rock