在缺乏水分时，植物一般用蒸发作为降温的手段。
When it is short of water, a plant normally USES evaporation as a means of cooling.
在缺乏水分时，(植物)一般用蒸发作为降温的手段。一株植物无法消除它从阳光中所吸收的热量，或是无法消除它在新陈代谢过程中积累起来的热量。
When it is short of water, a plant, which normally USES evaporation as a means of cooling, cannot rid itself of the heat it absorbs from sunlight or the heat that may build up from its own metabolism.
亚特兰大乔治亚技术研究院的斯瑞尼瓦斯·盖瑞·麦拉正在开发用外部热源把氨从溶液中蒸发出来的系统。
Srinivas Garimella at the Georgia Institute of Technology in Atlanta is developing a system in which external heat is used to boil off ammonia vapour from a solution.
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