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.
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。
The passive house USES heat from sunlight and the heat radiated by the occupants and household equipment to keep the inside temperature at a constant level of 17 to 18 degrees Celsius.
被动式住宅使用的被动热量，来自太阳光的热量，以及住户和家用设备的热辐射，能够保持室内温度，在17摄氏度至18摄氏度的恒定水平。
This huge plant in California USES hundreds of mirrors to reflect sunlight on to a boiler at the top of the tower.
美国的加利福尼亚有大型的太阳能设备，利用数百面镜子把太阳光反射到一个塔顶的锅炉上。
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