合理的加大蒸发面积，即保证十足产量，又提高冰块质量！
Reasonable increases in evaporation area not only ensure adequate output but also enhance the quality of ice!
从效率考虑，屋顶形状应这样来设计，即它可提供尽可能大的蒸发面积。
For efficiency the shape of the roof should be designed in such a way that it provides as large an evaporation area as possible.
据估计，单独一个大雨林或针叶林其蒸发面积大约相当于一个40英亩的湖泊。
It has been estimated that a single large rainforest or coniferous tree has an evaporative surface area roughly equal to a 40 acre lake.
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