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为确定烟草的适度亏水效应及烟草水分生理灌溉指标，进行了烟草蒸渗仪试验，通过控制土壤水分下限研究烟草的适度亏水效应。
Experimental study was performed to determine the moderate water deficit effect and physiological irrigation index of tobacco with lysimeters by controlling the lower limit of soil water content.
在其他方面，灌溉、雨水控制、能量模型和树木带来的利益都有具体指标。
Specific metrics exist for irrigation, stormwater control, energy modeling, and benefits produced by trees, among others.
单位水量粮食生产能力是综合反映灌溉用水水平和粮食生产状况的重要指标。
The food yield per unit water is an important index, which indicate the efficiency of the irrigation water use and status of food production.
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