公元7世纪，赞布松赞干布统一青藏高原，建立吐蕃王朝，定都逻些，并逐步兴建了大昭寺、小召寺、形成了以大昭寺为中心的旧拉萨城区的雏形。
In the 7th century, Songtsan Gambo unified the Qinghai-Tibetan Plateau, established the Tubo kingdom, and chose Lhasa as the capital city of the kingdom.
逐步建立健全流域水资源法制体系，加强水资源全流域统一管理；
To establish legislative system for water resources in the whole basin and strengthen the integrated basin management;
逐步建立健全流域水资源法制体系，加强水资源全流域统一管理；
To establish legislative system for water resources in the whole basin and strengthen the integrated basin management;
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