base of levee 堤底
base of levee west bank 堤底
levee base of
堤基
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The internal cause is the week pervious beds occurred in the base of levee at the crevasse site.
决口处堤基大量软弱透水地层的存在，是决口的内在因素；
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Research results could offer the base for reliability analysis of levee seepage stability.
研究成果可为堤防渗透稳定可靠性分析提供基础。
Among the improvements are concrete "splash pads" on the protected sides, meant to prevent the earthen levee from eroding around the base of the concrete flood walls that sit atop them.
CNN: Concerns about New Orleans-area levee ease
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