Research results showed that the surface shape factor was not a constant value, but a variable value with the change of irrigation time, water advance distance and other factors.

研究表明同一次畦灌过程中地表储水形状系数并非恒定值，而是随灌水时间和水流推进距离等因素变化的。

youdao

The optimal irrigation time and period for sunflower were designed.

确定了向日葵最佳灌水次数和灌水时段。

youdao

It is based on actual evapotranspiration capacity, effective rainfall and water reserve of soil to forecast irrigation time.

以实际蒸发蒸腾量、有效降雨量和土壤贮水量来预报未来灌水时间。

youdao

The second phase involved filtering the waste-water a third time, to bring it up to irrigation grade quality, so that it could be reused locally without upsetting anyone downwind of the plant.

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Compound fractures are time sensitive and need to be treated immediately with copious irrigation to thoroughly clean the site of injury, followed by stabilization of the fracture with special hardware or mechanical devices (rods or pins).

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The melt season is often the warmest, driest time of the year, providing large volumes of runoff for irrigation when it is most needed.

UNESCO: 83e