What is the curtain wall elevation, plan, big sample, node, respectively, to pay attention to what. What are the characteristics and relationships.
Open "my computer" "Recycle Bin" what to see what is inside, is the node map. From the node diagram can see the construction of the key parts of the curtain wall.
Your screen desktop. "My computer" "recycle bin" and so on these single out are called big sample. But also the various parts of the curtain wall, representative.