华北水利水电学院北京研究生部；松辽流域水资源保护局
School of Postgraduates
North China Inst.of Water Resources Hydropower
流域水资源保护
water resources protection of river basins
流域水资源规划
watershed water resource planning
流域水资源平衡
water balance on basin scale
松辽流域水资源保护局
songliao basin water resources protection bureau
Song-liao River Basin Water Resource Protection Bureau
song-liao river basin water resources protection bureau
Song huajiang-Liaohe Department of Water Resources Protection