Potassium dihydrogen phosphate promoted the opening of stomates so as to increase evapotranspiration intensity and relative water loss rate.
磷酸二氢钾有促进气孔开张的作用，使蒸腾强度和相对失水率相应增大。
The concept of relative water loss rate is advanced to judge the degree which actual water loss is higher than theoretical water loss in the process of vacuum cooling.
提出相对失水率的概念，作为比较真空冷却过程中实际失水高于理论失水程度的判断依据。
Water is used as the researched object, different methods have been taken in the experiments to reduce the ineffective water loss, the results show that the relative water loss rate is more than 2.
以水作为研究对象，采用不同的方法进行降低无效失水的实验，结果是水面上不加遮挡物时，其相对失水率高达2。
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