C598 Annihilating 82
In the development of fighter planes, a very important job is drawing, and in the old industrial base, there's a large group of illustrators.
Mechanical blueprints had a kind of innate beauty. For example, in the aviation magazine, you could see the blueprints of all kinds of planes. It was dazzling, but it also made people feel incomparably fresh.
That was only a cursory diagram