短語詞組短語total bed sediment load 底沙縂量bed load sediment 推移質(zhì)沉積物;推移質(zhì)泥沙bed load sediment discharge 推移質(zhì)輸沙率bed -load sediment transport rate 推移質(zhì)輸沙率sediment bed load 沉積泥沙suspended sediment and bed -load sediment 懸沙和底沙sediment of bed load 河牀質(zhì)泥沙 返回 bed sediment load