In many parts of the world renewable energy is already a principal energy source.
在世界许多地方，可再生能源已经是一种主要的能源来源。
All right folks, let's continue our discussion of alternative energy sources and move on to what's probably the most well-known alternative energy source—solar energy.
好了，朋友们，让我们继续讨论替代能源，来说说可能是最著名的替代能源——太阳能。
In a recent speech in Iowa, he dismissed wind power as an unreliable energy source.
最近在爱荷华州的一次演讲中，他将风力发电视为一种不可靠的能源。
It could prove to be an energy source in the future.
也许将来它会变成一种能源。
Why then did petroleum not emerge earlier as a serious energy source?
于是为什么石油没有更早的作为能源出现呢？
This is an approach that says we're not going to pick one energy source over another.
我们这么做并不是让一种能源替代另外一种。
But the fungi had munched through the treated plastic and used it all as an energy source.
而真菌却大肆吞噬了处理过的塑料，并从中获取能量。
Nuclear power is the only abundant energy source we have that emits nearly no greenhouse gases.
核能是已知的充足无污染的能源，几乎没有任何温室气体排放。
But I keep hearing them touted as a clean energy source that will do great things for the planet.
但是我经常会听到核能源被宣传为一种对地球有好处的清洁能源。
Scientists are still trying to find ways to make solar power a more widely used energy source.
科学家们至今仍在设法充分利用太阳能。
Biofuels have been around for a long time and they are the least expensive renewable energy source.
生物燃料已经被使用了很长时间，并且它也是最便宜的可再生能源。
Many states have abundant coal, whose technology is continuously making it into a cleaner energy source.
美国许多州有着丰富的煤，它们的技术在不断地把煤转化成更加清洁的能源。
The principal metabolic pathway of RBC is glycolysis, and the main energy source in most species is glucose.
红细胞的主要代谢途径是糖酵解，而大多数物种的主要能量来源是葡萄糖。
All life on Earth needs water, carbon-based organic molecules, and an energy source, either solar or chemical.
地球上所有的生命都需要水、碳基有机分子和某种能量来源——不是太阳能就是化学能。
So, while high-altitude wind may ultimately prove to be a major energy source, it requires substantial infrastructure.
因此，尽管高空风能可能最终被证明是一个主要的能源来源，它仍然需要大量的基础设施。
Wind power has emerged as a viable renewable energy source in recent years - one that proponents say could lessen the threat of global warming.
风能是近几年呼声最高的可再生资源——其中一个原因在于，支持者们认为风能可以降低全球变暖的威胁。
The report said that fossil fuels — especially from the major oil-exporting nations in the Mideast — will remain as the world's main energy source.
报告称，矿物燃料，特别是来自中东地区主要石油出口国家的矿物燃料，将继续成为世界的主要能源来源。
Its applications range from forecast of energy source and finance to analysis of picture, text and voice, and robot control and satellite survey.
它的应用范围从能源和财政预测到图像、文本和语音分析，以及机器人控制和卫星监测等。
As long as you can find two chemicals or minerals that can transfer an electron between them, you've got an energy source, a microscopic battery of sorts.
只要两种化合物或矿物之间能交换电子，它们就是一个能量源，就像一个微小的电池。
Now that we have a very intermittent energy source that we want to insert into the grid, we need to rethink how we manage the integration of those resources.
现在，我们希望在电网中加入时断时续的发电设备，所以需要重新考虑管理这些资源的方法。
Existing devices are often heavy, about five to 10 pounds, and require an energy source to create the vacuum, making them difficult to apply in disaster Settings.
已有的类似设备往往都很笨重，大概有5磅到10磅，而且需要能量来制造真空环境，这就使得这些设备很难在灾难现场使用。
Some locals know of no opportunities other than coal, know nothing of wind as an energy source and do not have the resources to concern themselves with global climate change.
除了煤炭之外，一些当地人对别的机会一无所知，他们不知道风也能产生能源，也没有渠道去了解他们和全球气候变化的关系。
The aim of both teams is to tap into high-altitude wind, which is an energy source that is more abundant and reliable than the ground-level wind on which normal turbines depend.
两个研究小组的目的是一致的：利用更加丰富、稳定的高海拔风能发电，而普通的涡轮发电机则依赖于地表风能。
"Glucose metabolism goes up when you activate your brain, when you're thinking, when you're speaking," she says, "because you need the energy source in order for cells to function."
她说，人在用大脑思考问题时，说话时，葡萄糖的新陈代谢会随之增加，因为细胞工作时需要消耗能量。
"Glucose metabolism goes up when you activate your brain, when you're thinking, when you're speaking," she says, "because you need the energy source in order for cells to function."
她说，人在用大脑思考问题时，说话时，葡萄糖的新陈代谢会随之增加，因为细胞工作时需要消耗能量。
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