sand-shell dam 砂壳坝
hard shell dam 硬壳坝
dam shell 坝壳
the clay-center-wall and sand-shell dam 粘土心墙砂壳坝
upstream shell of dam 上游坝壳区
rhombus dam shell 坝壳棱体
earth-rock dam shell 砂砾石坝壳
material for dam shell 坝壳土石料
Using traditional calculating ways, it is impossible to obtain precise result of stress distribution and deform of hard shell dam.
硬壳坝由多种材料构成，用传统的计算方法其结果无法准确的反映坝体各部位的应力、变形情况。
If efforts to dam the Shell oil spill prove unsuccessful the final amount of oil leaked into the North Sea could be four times greater than it is at present, the company admitted on Wednesday.
周三壳牌公司承认，如果阻止壳牌原油泄漏的努力以失败告终，北海泄漏原油总量可能达到目前泄漏量的四倍多。
Strength of materials is required for building dam shell for the sake of stability.
土石坝的坝壳材料主要为了保持坝体的稳定性，一般要求有较高的强度。
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