用静态平面和动态空间两种模型对灌区水资源利用系数进行了理论和实践的综合分析研究。

Comprehensive analysis and research on the theory and practice of water use efficiency in irrigation district is conducted by using static plane and dynamic space models.

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目前水资源利用和开发上存在的主要问题有：农业输水设施不足和失修较为严重，水分利用系数低；

The major problems in utilization and exploitation of water resource are as follows: low water use coefficient due to old and disrepair water-transporting facilities;

youdao

目前水资源利用和开发上存在的主要问题有：农业输水设施不足和失修较为严重，水分利用系数低；

The major problems in utilization and exploitation of water resource are as follows: low water use coefficient due to old and disrepair water-transporting facilities;

youdao