3d – In FBX file, I cannot understand difference between Transform and TransformLink

I am very new to FBX and not familiar in this area since I just started to study it

In the FBX SDK reference guide, It says :

Transform refers to the global initial position of the node containing the link

TransformLink refers to global initial position of the link node

But I cannot understand the definition.

Also what’s the difference between “node containing the link” and “link node”

The document is too unfriendly to study FBX… Can I get some help?

In advance Thanks 🙂