短語(yǔ)詞組短語(yǔ)bottom m sediment 罐底襍質(zhì)bottom m sediment transport 河底泥沙搬運(yùn)river bottom sediment 河底沉積;河底沉積物Bottom Sediment Of Streams 底泥河流bottom sediment movement 底沙運(yùn)動(dòng)bottom sediment type 底質(zhì)類(lèi)型the bottom sediment 底泥bottom sediment dredge 底泥疏濬 返回 bottom sediment