Slope construction at upper reach of bedding materials of the concrete face rock-fill dam directly relates to the quality of concrete face, dam construction progress and cost of construction.

面板堆石坝垫层料上游坡面施工直接关系面板的质量、大坝施工进度及施工成本。

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"What we're doing is trying to change the face of bedding in the world, " Marciniak said.

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