irrigation basin meaning in Chinese

灌溉盆地

As the haihe , huaihe and yellow river basins have already achieved a fairly high level of irrigation basin efficiency , exclusive reliance on upgrading such efficiency is unlikely to achieve balance of irrigation water in these basins
在黄淮海地区，流域灌溉水利用效率已经较高，完全依赖于提高灌溉用水效率也不能实现流域的灌溉水平衡。
2 . builds up decision model for water resource ' s optimal distribution of large irrigation areas in this thesis . this model resolves the optimal decision problem of how to distribute water resource to meet maximal total net profit in irrigation basins , when water supply potential of irrigation areas " canal head and bailing capability of pumping station hold the line
2 、建立了大型灌区水资源优化调度决策模型，研究在灌区渠首供水能力和泵站提水能力一定的条件下，将灌区水资源如何调配才使得灌区总净收益达到最大值的优化决策问题。