And they use electron beams instead of light beams to visualize the image, which diffract a lot less.

它们使用电子束而不是光束来可视化图像，衍射要少得多。

When these diffracted waves run into each other, they interfere.

当这些衍射波 相互碰撞时，它们就会发生干涉。

But when waves diffract, they often spread outward behind obstacles.

但是当波发生衍射时，它们通常会 在障碍物后面向外扩散。

If you try to zoom in more than that, the image will get blurry because of how light diffracts, or spreads out, when it hits an object.

如果你想要再进行放大的话，图像会变得模糊，因为当光击中物体时，它会衍射或扩散。

At that point, the waves of light that diffracted around the edges of the coin have all traveled the same distance.

那时，围绕硬币边缘衍射的光波都传播了相同的距离。

Since lenses have edges, the incoming rays will always diffract and produce slightly blurred images, even if the lens is perfectly crafted. .

由于镜头有边缘，即使镜头制作精良，入射光线也会 始终衍射并产生略微模糊的图像。