And it has been shown that ketones can provide up to 60% of the energy requirements for an adult brain.

研究表明，酮体可以提供人体大脑所需能量的 60%。

This works for the time being, but ultimately only 75% of the brain's energy requirements can come from ketones. It still needs glucose!

这暂时会起到作用，但最终酮类只能够满足大脑所需能量的75%，它仍然需要葡萄糖！

Faced with severely limited resources, a smaller-sized child with reduced energy requirements will, in fact, have a better chance of living to adulthood.

面对有限的资源，能量需求小的个头小的孩子事实上能增加长到成年的几率。

We suppose that makes sense considering the massive energy requirements of having such a large body.

考虑到拥有如此庞大的身体需要大量的能量，我们认为这是有道理的。

Prime Minister Narendra Modi has pledged that renewable sources like solar and wind power will meet 50% of India's energy requirements by the end of this decade.

印度总理纳伦德拉·莫迪承诺，到本十年末，太阳能和风能等可再生能源将满足印度50%的能源需求。

Only a tiny fraction of the food produced at the surface reaches the sea floor, so being small gives animals a low energy requirement and an adaptive advantage.

减少的食物来源被认为是造成这种体积缩减的原因，仅有一小部分水面的食物最终到达海底所以动物的小型体积能够降低能量消耗。

As this 1986 paper reveals, " ketone bodies could account for as much as 25% of the neonate's basal energy requirements in the first several days of life."

正如这篇 1986 年的论文所揭示的，“新生儿最初几天的基本能量需求中，酮体可能占到 25%。”

Once the energy requirements are met the reaction will proceed, but its speed, or reaction rate, will vary wildly from super fast to super slow.

一旦满足能量需求， 反应就会继续进行，但它的速度或反应速率会从超快到超慢变化很大。

The population density of such a tower could help lower the individual energy requirements of each inhabitant, reducing the ecological impact of the population as a whole.

这种塔的人口密度可以帮助降低每个居民的个人能源需求，从而减少整个人口对生态的影响。

Actually, up to 70% of the grass-fed cattle's energy requirements come from short-chain fatty acids, which are produced as a result of microbial fermentation of the grass in the foregut of the cow.

实际上，草饲牛 70% 的能量均来自于短链脂肪酸，而这些脂肪酸都是经过生长于生肠中的微生物发酵形成的。