The utilization coefficient of irrigation water contains the utilization coefficient of canal system water and field water.
灌溉水利用系数包括渠系水利用系数和田间水利用系数。
Seepage through the channel dredging project and the construction of small-scale water contiguous to effectively improve the utilization coefficient of irrigation water.
通过渠道清淤防渗工程和小农水连片建设，有效地提高了灌溉水利用系数。
In the second part of the thesis, an experimental study on the effect of embedded depth on the uniformity coefficient of irrigation and the distribution of soil moisture was made.
第二部分对渗灌管埋深对灌水均匀度和土壤水分分布的影响进行了试验研究。
The results showed that water consumption, water consumption coefficient and grain yield of winter wheat varied with different irrigation treatments.
试验结果表明：不同灌溉处理下，冬小麦的耗水量、耗水系数、产量不同。
For the convenience of application, the paper also presents the pipe network coefficient formula for typical branching network and loop network in well irrigation district.
为了便于实际应用，同时给出了井灌区管灌典型情况的树状网和环状网管网系数的计算公式。
With combining optimization method, an optimal model of determining synthetic surface roughness coefficient in film hole irrigation was developed.
实例计算与方法验证表明，该方法能够简单而有效地确定膜孔灌溉田面综合糙率系数。
Weifang is also the big agricultural city, the water used in agriculture occupies 85% of the whole city water consumption. The utilization coefficient of the whole city irrigation water is about 0.5.
潍坊又是农业大市，农业用水占全市用水量的85%，全市灌溉水利用系数在0.5左右，农业节水潜力巨大。
Weifang is also the big agricultural city, the water used in agriculture occupies 85% of the whole city water consumption. The utilization coefficient of the whole city irrigation water is about 0.5.
潍坊又是农业大市，农业用水占全市用水量的85%，全市灌溉水利用系数在0.5左右，农业节水潜力巨大。
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