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cut-off trench /ˈkʌt ˈstəʊn/ n

中文：截水槽

中文 · 截水槽Español · cortina de inyeccionesFrançais · parafouille
Meaning：Area of the foundation of the dam that is connected to the core; it contains impermeable materials to limit leakage and infiltration under the dam.
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Embankment dam Gravity dam

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