For instance, it is required that these pieces can be put together with one translational motion.

举个例子，这些部件需要一个平移动作才能连接在一起。

But the physics of rotational motion isn’t all that different from the physics of translational motion.

但是旋转运动的物理学与平移运动的物理学并没有什么不同。

And in translational motion, the inertia of an object depends on mass.

而在过渡运动中，身体的惯性 取决于它的质量。

But the physics of rotational motion isn't all that different from the physics of translational motion.

但运动的物理学也不例外 非常关于平移运动的物理学。

When it comes to translational motion, we tend to talk about position in terms of x and y.

当谈到过渡运动时， 我们倾向于用 x 和 y 符号来表示位置。

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

在物体不旋转运动的情况下，所有这些 动能用于平移运动。

Because, first, the moment of inertia affects rotational motion in the same way that mass affects translational motion.

它们以相同的方式影响旋转运动 质量影响平移运动。