一旦平面能够准确匹配，我们就可以开始复制、缩放和移动不同的拷贝(刚才所建的零高度立方体的拷贝——译者注)。

Once we have that plane into place, we can duplicate, scale and move it to create different copies.

youdao

youdao

宇宙在每一个“万古期(世代)”伊始的体积为零并保持高度均匀形态。

Each aeon starts off with the universe being of zero size and high uniformity.

youdao

It knows that this particle happened to have a height of 15, at the time of 0, and a velocity of 10, and it is falling under gravity with an acceleration of -10.

这个质点恰好处在高度为15的地方,零时刻,初速为10,并在重力作用下以-10的加速度下坠

耶鲁公开课 - 基础物理课程节选