认为最好的冰箱应该防止冰的融化这样一个普遍的观点显然是错误的，因为正是冰的融化起了制冷作用。
The commonsense notion that the best icebox was one that prevented the ice from melting was of course mistaken, for it was the melting of the ice that performed the cooling.
对于运输货物来说，水运是最佳选择---比货运对气候的影响要少至少30倍并且由于由于硫化物的排放可以产生制冷作用。
For moving freight, ships were best -- impacting climate up to 30 times less than trucking and actually often producing a cooling effect because of their sulfur emissions.
干燥气候下，由于土壤水分的蒸发制冷作用，一天中土壤各点的温度低于湿润气候下相应各点的温度，土壤表层尤为明显。
Due to the effect of water evaporation in dry climate, soil temperature at each point is lower than that of in humid climate.
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