其中有一项已经试验的技术叫做“露点制冷”，这项技术依赖自然能源自造蒸馏水。而不是利用化石燃料来制造。
One technique they're experimenting with is so-called "dew-point cooling," which relies on the natural energy produced by evaporating water, rather than fossil fuels.
其中有一项已经试验的技术叫做“露点制冷”，这项技术依赖自然能源自造蒸馏水。而不是利用化石燃料来制造。
One technique they're experimenting with is so-called "dew-point cooling," which relies on the natural energy produced by evaporating water, rather than fossil fuels.
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