Silver halides are just some atoms of silver bound to atoms of any element known as a halogen, which includes things like bromine, chlorine, and iodine.

卤化与卤素组成，卤素包括像溴、氯、碘等元素。

Typically, it's silver halide crystals floating around in gelatin, which solidifies on the film.

有代表性是悬浮在胶状体中的卤化晶体，其最终固定在胶卷上。

If more photons hit a silver halide crystal, more reactions with the developer can happen, and that spot on the film strip becomes darker.

更多击卤化晶体，会引发更多显影剂反应，并且胶卷上的该点也会变得更暗。

But the basic idea is that they react with the remaining silver halide crystals to create an image you can see.

但基本思路都是与残留的卤化晶体反应，生成可见的图案。