我们只有在用伽玛射线观察内部之后才能很好地了解齿轮的结构，这和用 X 射线看你的骨头非常相似。

We could only get a good look at the structure of the gears after gamma-rays were used to see inside, very similar to the way X-rays are used to see your bones.

youdao

例如，在月球表面，太阳射线是非常危险的。

On the moon's surface, for example, the sun's rays are very dangerous.

youdao

而那些津津乐道于人们在太空船里到处溜达还用射线枪互相射击的科幻作品都非常傻。

Science fiction that's just about people wandering around in space ships shooting each other with ray guns is very dull.

youdao

Well, we can't guarantee with UV light we'll have enough energy to eject every single electron, so that's why when we use x-rays, they're higher energy, you can pretty much be guaranteed we're going to eject all of those electrons there.

好，我们不能保证紫外光有足够的能量,激发出每一个电子，所以我们要使用，X，射线，它的能量更高，你可以非常确定,我们可以激发出其中所有的电子。

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