短語詞組短語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non -uniform bed-sediment 非均勻沙河床bed -sediment re-suspension 底沙再懸浮close -to-bed suspended sediment concentration 臨底懸沙含量bed sediment load 沉積底沙bed sediment size 底沙粒度bed sediment distribution 底質(zhì)分布Underwater bed sediment 水體底泥 返回 bed sediment