dune,sand dunes是什么意思

网络释义

1)dune,sand dunes,砂丘2)bed dume,河床砂丘3)bed dune,河底砂丘4)dune of the transversal type,横砂丘5)sand-dune stabilization,砂丘固定6)dune ofthe longitudinal type,纵砂丘