... base of foundation 基底 base of levee 堤底 base of nozzle 管嘴底 ...
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base of levee west bank 堤底
Levee base of 堤底
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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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