The design of a gantry equipment processing center, sheet metal equipment is difficult to balance between complexity and streamlining. Looking back at yesterday's design today, there are always many shortcomings. Recognizing the shortcomings, it has been progress. Unconsciously, I have been working for more than three years, and finally I see a glimmer of persistence this year. I hope I can take everything seriously. Recently I read a passage: something I like very much, it was a man who picked up a real gun on the road in the summer when he was 13 or 14 years old. Because the sky is not afraid of the earth, he pulled the trigger, no one died, no one was injured. He thought he had fired an empty shot, and then when he was thirty or older, he was walking down the road and heard a faint wind behind him. He stopped and turned around, the bullet in the middle of his eyebrows. -- miss shi tiesheng