研究人员说这种材料也可以在用在发电厂中,甚至用在海洋热能发电机上。
The material could also be used in power plants or even ocean thermal energy generators, the researchers said.
而现在有种材料,无需工作流体通过传统发电机就可以直接将热能转化为电能。
But there are materials that can directly convert heat into electricity without running some working fluid through a traditional generator.
没人知道究竟有多少美国人靠国家公共事业的网络生活—依靠发电机或替代能源,如太阳能、风能和地热能。
No one is sure just how many Americans live off the national public-utilities grid - relying on generators or alternate energy sources such as solar, wind and geothermal.
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