Those specular reflections come only from two specific regions.

这些镜面来自两个特定区域。

Those signals are called specular reflections.

这些信号称为镜面。

And people have observed whale carcasses exploding before, forming specular showers of blood and viscera.

人们之前也曾观察到鲸鱼尸体爆炸，形成血脏的镜面雨。

The regions where the specular reflections show up are surprisingly dry.

出现镜面的区域出奇地干燥。

After doing that, these researchers realized that the specular reflections all come from a few specific spots.

这样做之后， 这些研究人员意识到镜面都来自几个特定的​​点。