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rockfill dam
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rockfill dam
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堆石坝
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rockfill dam
堆石坝
主体采用堆石(或砂砾石、石渣等粗颗粒透水材料)填筑,并设置完整防渗体系的一种土石坝。
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更新时间:2025/4/15 23:47:28