core wall dam 心墙坝
core wall sand dam 心墙砂壳坝
core-wall rockfill dam 心墙堆石坝
clay core wall sand dam 粘土心墙砂壳坝
core wall rock filled dam 心墙堆石坝
core wall type rockfill dam 心墙坝
core wall earth-rockfill dam 心墙土石坝
asphalt concrete core-wall rockfill dam 沥青混凝土心墙堆石坝
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