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- climatic changes (1)
- climatology (1)
- desertification (1)
- diversion structures (hydraulic engineering) (1)
- environmentalism (1)
- history (1)
- hydraulic engineering (1)
- north africa (1)
- paleoclimatology (1)
- river engineering (1)
- sahara (1)
- thirlmere, lake (england) (1)
- water diversion (1)
- water resources development (1)
- water transfer (1)
- water-supply (1)
- 图集 (1)
- 城市规划 (1)
- 建筑设计 (1)
- 研究 (1)
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