It implements the full connectivity of network resources, a low cost, high efficiency, ease to use.

它实现了全面连通的网络资源，成本低，效率高，使用方便等优点。

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Aimed at the objective of high-efficiency use of water resources, the optimal water resources allocation among different irrigation districts and different crops in Kaifeng city are studied.

以水资源高效利用为主要目标，对开封市内各地区之间水量优化分配进行了研究。

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Ascertaining the change rules of safe production dates and heat-light resources of rice is an important basis for high use efficiency of heat-light resources, and high and stable production.

明确水稻安全生产期及温光资源的变化规律，是提高温光资源利用率和实现水稻高产稳产的重要基础。

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