Imagining anenormous, expensive concrete dam, Hall started to hit Delete.

想像到巨大而昂贵的混凝土水坝，霍尔开始点击删除。

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With concrete dam ageing, the change takes place in it's deformation modulus.

随着坝龄的增长，混凝土大坝的变形模量将发生变化。

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The structure system of comprehensive health diagnosis for concrete dam is built.

构建了混凝土坝结构健康诊断的结构体系。

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Men in two special factories worked day and night to make the concrete building material for the dam.

VOA: special.2009.08.12

Workers also used more than twenty million kilograms of steel to strengthen the concrete in the dam.

VOA: special.2009.08.12

They had used almost four million cubic meters of concrete in the dam.

VOA: special.2009.08.12

Workers spent two years pouring concrete for the dam, which would have taken 125 years to cool if Crowe hadn't designed an ingenious web of pipes that pumped cold water throughout.

FORBES: American Pyramids

Yet noble intentions do not, of themselves, move concrete, even rotting concrete like the cement-and-pine-cone slurry used to make the Elwha Dam, the first of the two structures to be built.

ECONOMIST: Water in the West (2)