我们可以使用的所有能量都不会永远持续下去。

All the energy we could ever use won't last forever.

youdao

代之以持续两天的电池，同样的电池为用碳纳米管晶体管制造的传感器系统提供的能量可以持续两周的时间。

Instead of a battery lasting two days, the same battery providing power to sensor systems built with carbon nanotube transistors may last up to two weeks, "said Przybysz."

youdao

更好的电池产生了，它能储存更多能量，更廉价，持续时间更长，而且比传统电池生产技术使用更少的有毒化学物质。

A battery that can store more energy, is less expensive, can last longer and wouldn't use as many toxic chemicals in the manufacturing.

youdao

Imagine how much power it takes to drive an artificial heart, so you've got to have a battery or some way of generating power continuously to operate that and that makes it difficult to think about implantable and so that's a really good example of Biomedical Engineering.

驱动人工心脏所需要的能量是难以想像的,所以需要电池或者是某种持续发电装置,来给人工心脏提供能量,这就增加了人工心脏的植入难度,这是很好的生物医学工程的例子

耶鲁公开课 - 生物医学工程探索课程节选

There are probably those of you in the class already who are outraged by things like the modern food environment, how much energy it takes to transport things from place to place, lack of concern with sustainability and issues like this, and you'd like to see social change.

在坐的各位当中可能已经有人,对目前的食品环境感到愤怒,很多能量浪费在食品相关的运输上,忽略了对可持续性的关心等问题,你可能希望社会会有所改变

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选