If this wasted heat energy could somehow be harvested, solar cells could be much more efficient.

假若这些浪费掉的热能能用某种方式采集到，太阳能电池将比现在有效率得多。

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If even a small proportion of this wasted heat could be converted to useful power, it would be a good thing.

如果把浪费掉的很小的一部分热能转换为有用的能量，这都是件好事。

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In practice, the wasted heat energy may be recovered and utilized by certain equipment so that energy will be saved and environment be improved.

实践中，可以通过某种设备系统将其回收利用，既节约了宝贵的一次能源，又改善了环境质量。

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In that process there is a metabolic engine at work, and some people have an efficient engine so that the calories in get banked in the fat, other people have an inefficient engine, that is the calories get wasted as body heat and things like that, and they tend not to gain weight.

这过程中人体内有个工作着的代谢引擎,有些人的代谢引擎效率很高,热量便转化为脂肪储存起来,另一些人的效率低下,能量就以体温等形式被浪费了,因此他们就不容易发胖

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By capturing a large share of this wasted heat for end users, CHP can achieve an efficiency of as much as 90%.

FORBES: The Case for A Federal Cogeneration Standard

Although a lot less energy is wasted through heat than in the case of a traditional light bulb, some heat loss still occurs.

BBC: LED light bulb to last more than 20 years

The Kers system stores energy that would otherwise be wasted as heat during braking, then reapplies it during acceleration to provide a boost in power, controlled from the cockpit by the driver.

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