natural levee

常见例句

雙語例句

• A gap eroded by flood waters cutting through a natural levee. Cracks in the top of a glacier.
  洪水切割天然堤所侵蝕出的缺口稱爲決口。冰川頂部的裂隙可稱冰隙。
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• There are 7 sedimentary microfacies that can be recognized, including underwater distributive river course, estuarine bar, submerged natural levee, etc.
  研究區識別出水下分流河道、水下分流河道堤泛沉積、河口砂垻、遠河口砂垻、分流間灣、前緣蓆狀砂等微相。
• The natural levee, crevasse splay and overbank sand are difficult to be effective reservoir for their content of mud-bearing silt, silty mud and unmixed mud.
  天然堤、決口扇、溢岸砂多爲含泥粉砂、粉砂質泥和純泥，很難成爲有傚儲層。

權威例句

• Dr. VIRGINIA BURKETT (Chief, Forest Ecology Branch, National Wetlands Research Center, U.S. Geological Survey): For example, where we have artificial fill, the subsidence rates are much more rapid than they are on the natural levee deposits.
  NPR: Satellite Imagery Shows a Sinking New Orleans
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