来自《耶鲁大学开放课程：新生有机化学 第6集 第6集》

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  And that gives rise to this fuzzy pattern,
  它使光发生衍射 形成模糊的图像
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  like a snowflake in reciprocal space.
  在倒晶格空间中 就像这个雪花
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  And then you have a crystal lattice,
  现在我们有了一个晶格
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  a regular repetition of these patterns, right?
  即分子的某种模式的有序重复
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  And that's as viewing through the holes in the pegboard.
  然后得到了这个透过小钉板看到的图像
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  And remember that decreased spacing in real space
  要记住的是 真实空间里距离减小
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  corresponds to increased spacing in reciprocal space;
  其在倒晶格空间里相对应的距离却会增加
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  which is of course why it's called "reciprocal".
  这也正是倒晶格里 倒 的意思
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  Okay, so that's what we want to understand about how it works.
  以上就是我们想要知道的原理部分
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  There are patterns which give rise to patterns
  特定的分子可以在倒晶格空间里
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  in reciprocal space,that fuzzy thing,
  形成特定的 模糊的干涉图像
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  and then if you have a repeating lattice of that,
  而该分子的重复晶格