我们将写下来，激光束在墙上，移动的距离。

We will write down, then, how much that laser spot goes up on the wall.

youdao

守护者的激光束现在改变了颜色。

Guardian laser beams change color now.

youdao

他和他的同事们现在已经作出了第一个这样的激光束。

He and his colleagues have now made the first such beams.

youdao

他和他的同事们现在已经作出了第一个这样的激光束。

He and his colleagues have now made the first such beams.

youdao