Silting in dams raise the erosion base. This can prevent guilybed from cutting down, and banks from expanding;

坝地淤积，抬高了侵蚀基准面，可以防止沟道下切和沟岩扩张；

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But, he conceded, "there has been some erosion in our support base."

但是，他承认到，“支撑我们的地基，肯定会有些磨损的”。

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The base of the building is clad with gabions – cages filled with rocks that are typically used to stabilise shorelines or slopes against erosion.

建筑基底外覆盖了一层金属笼子——笼子内装满了石块，这种方法通常用于稳固海岸线或者斜坡来避免侵蚀。

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Grubert and Altshuler have devised what many think is an elegant solution to both the competitiveness and the base erosion problems.

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So is this something that is really striking America as a whole, the erosion of the manufacturing base that started decades ago?

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How can the U.S. stop this erosion of the corporate tax base while keeping U.S.-based firms competitive in international markets?

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