If you throw a football without it spinning, it would follow a similar trajectory, but it wouldn't tip over.

如果你扔一个的足球，它会遵循类似的轨迹，但会翻倒。

I don't research the spinning of plates.

我研究盘子的。

In the case of objects that move without rotating, all of that kinetic energy goes into translational motion.

在物运动的情况下，所有这些 动能于平移运动。

The ladder isn't rotating, so any torques on it have to add up to zero.

梯子，所以力矩的总和 应于它的等于零。

Now you may wonder if you ever get non-rotating  black holes as everything in the universe is spinning in some way.

现在你可能想知道你是否曾经得到过的黑洞，因为宇宙中的一切都在以某种方式。

(2) and (3), without considering the rotational deformation vector, the deformation vector of the tunnel structure is expressed as 3.

（2）和（3）在考虑变形矢量的情况下，隧道结构的变形矢量表示为3。

Some are designed for spinning like a football, but making the ball spin or not spin depends on what you're doing with your hand, or a racket or a bat, or whatever it is you're using to move the ball.

有些是为了像足球一样而设计的 但让球或取决于你的手在做什么 或球拍或球棒 或任何你来移动球的东西。