Riverbed

柯林斯英漢雙解大詞典

riverbed /ˈrɪvəbɛd/ (also river-bed) ( riverbeds )

1.N-COUNT A riverbed is the ground which a river flows over. 河牀 ^[1] 

Dry Riverbed 乾枯河牀

riverbed stability 河牀穩定性 ; 河牀穩定

riverbed roughness 牀面粗糙度

riverbed scouring 河道沖刷

sand riverbed 沙質河牀

riverbed scour 河牀演變

overburden riverbed 覆蓋層

narrowed riverbed 束窄河牀

riverbed placer 河牀砂礦 ^[1]