在这个原因,有时也称为水蓝宝石。
许多杰出的技术正是栽在这个原因之上。
在这个国家,我的任何朋友都可以到他喜欢的任何地方去散步,否则我就得知道原因!
Any friend of MINE walks where he likes in this country, or I'll know the reason why!
Everything -- gold, silver, diamonds, particles -- everything accelerates the same way in a gravitational field, due to this remarkable fact.
所有东西,金,银,钻石,粒子,所有东西,在引力场作用下都以相同的方式加速,原因就是这个显著的事实
For some reason, at the top of this file, I've also included what I've called a function prototype.
因为一些原因,在这个文件顶端,我包含了一个函数原型。
And the reason is, and this will come up on the problems and a lot of students end up using this equation, which is why I want to head it off and mention it ahead of time, we can't use an equation because this equation is very specific for light.
原因是,很多同学在解题时,都会用这个方程,所以我要,事先提醒你们一下,我们不能用这个方程,因为它只对光是用。
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