When we first enter the factory, we will receive some professional training. These trainings include basic knowledge, concepts, professional tools, use skills, etc. Then, they will be sent to the workshop to start work. I have carefully observed the growth process of these newcomers. Most people who use it well are not those who appear smart at the beginning, have a high degree of acceptance and grow fast. But those who always have a lot of questions first, ask East and West, like to think mo...