Explain the reason for duplicate checking at the bottom of the paper drawing:

1. At present, most paper duplicate checking systems can't identify pictures or copy them. Generally speaking, pictures will not be copied, but now some duplicate checking systems can recognize the words in pictures and copy them.

2. When the pictures in the paper will not be included in the scope of duplicate checking, and the repetition rate of some parts of the paper is too high to be modified simply and quickly, you can also take screenshots of these parts and replace them with pictures, thus reducing the repetition rate.