The single-effect evaporator consists of a container or surface and a heating unit. 单效蒸发器由一个容器或蒸发表面和一个加热单元构成。
The reference evaporation surface inducted in this model avoided the complex physical process of soil evaporation, and made the soil evaporation easy to be calculated. 模型所引入的参考蒸发面使其避开了土壤蒸发复杂的物理本质，从而使得对土壤蒸发的计算变得简单易行。
