And there are no guarantees that a metal will reflect higher energy waves, like UV and X-rays, at all.

此外金属不一定量波，如紫外线和X光。

When the wireless signal reaches the drone, it will be sent back to the station, forming a reflected wave.

当无线信号到达无人机后，会被回基站，形成波。

Then, the transducer uses the reflected waves to create an image.

然后， 换器使用波创建图像。

Objects like bones reflect the most waves, appearing as tightly packed dots forming bright white shapes.

像骨头这样的体的波最多，看起来像紧密堆积的点，形成明亮的白色形状。

Reflection is what happens when a wave reaches the end of a path, and then moves back along the same path.

是波到达时发生的事情 一条路的尽头，然后一路移动。

The beauty of a spherical reflector is that, by changing the position at which you measure the reflected waves above the dish, you're measuring those waves from different parts of the sky.

球面器的美妙之处在于，通过改变你在抛面上测量波的位置，你就相当于从天空的不同部分测量这些波。