In the copper wire process, the first copper wire is 50% of the first cross-section, and the second copper wire is 70% of the first cross-section, and the room buyers are kept natural. Then both wires are subjected to the same heat treatment. Draw the graphs showing the recovery (recovery), recrystallization (recrystallization) and grain growth rates of these, on the same graph, it also contains the establishment with a very short sentence or two.