"You have to totally commit." "At the same time, you've kind of got to let go to a power that's way greater than you.
VOA: standard.2010.08.04
That quantity in parenthesis, I have a mass which is a positive number. Something raised Something raised to the fourth power has got to be positive.
顺便说一句,质量这个量是个正数,四次方的值,肯定是正数。
If you want to draw upon a higher power you've got lots of choices there too.
如果你想借助于更强大的力量,也有很多的选择
Something raised to the second power has got to be positive.
二次方的东西,也一定是正数。
And,so,you've got these processes in the nineteenth century, economic processes that you find all over Europe that consolidate the power of the French State, centralized in Paris.
你了解到了,十九世纪的发展历程,经济发展历程,巩固了法国以巴黎为核心的,中央集权统治
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
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