At 7:50 on the 16th, long Jianhua followed Mr. Ye into the small auditorium. He was very excited to see that there were more than 700 people sitting in the dark.


    I haven''t spoken in front of so many people for a long time.


    Mr. Ye walked to the middle, "dear students, this is long Jianhua, a graduate student I just entered this year. It is not irresponsible for us to arrange a graduate student who has just entered the university to give lectures. I just want to tell you that the optical fiber in our school is the scheme he designed and made... "


    There was thunderous applause and buzzing discussion.


    Long Jianhua applauded with a smile on his face, but he make complaints about his teacher.


    Teacher, I want to keep a low profile. How did you say this?


    I haven''t been in school for half a month. Isn''t it just to keep a low profile?


    All previous efforts will be wasted.


    After the applause decreased a little, Mr. Ye continued, "long Jianhua has a lot of research on optical fiber communication. I think it''s better than..."


    Teacher, you are too modest!


    "His lesson preparation only lasted about three hours, but I arranged a day for him. Many of us here are dedicated to this. I hope you can ask more questions and take this opportunity to exchange your ideas. "


    "In 1973, when the world''s optical fiber communication was not used, the technical route of quartz optical fiber, semiconductor laser and coding system communication machine was adopted by Fuwu University of Posts and telecommunications, which was proved to be extremely correct, which not only reduced China''s detours in the development of optical fiber communication technology, but also made China''s optical fiber communication have a small gap with developed countries in high and new technology."


    "Now the 200m optical fiber with low attenuation has been produced, and the state has decided to establish an optical fiber factory. This gap should be smaller; Therefore, other supporting technologies are particularly important. I hope you can brainstorm... Well, I won''t say more and give the podium to my graduate student, long Jianhua. "


    With that, the audience burst into overwhelming applause again. Teacher ye walked aside and sat down with a smile.


    Long Jianhua inserted the first slide into the projector, and a title, "optical fiber communication" was displayed on the screen.


    After clearing his throat, the audience was quiet for a moment. They all looked at him eagerly and looked forward to the freshman recommended by Professor Ye.


    "Dear predecessors, Mr. Ye arranged me to talk about optical fiber communication. How dare I put a green onion in my nose in front of you? So it feels like he''s been cheated by the old man... "


    The audience laughed loudly, and teacher Ye looked at him with a smile.


    "However, what the teacher arranged must be completed meticulously as students; So today I dare to pretend to be an elephant in front of your predecessors. "


    Take the first slide and insert the second slide. There are only two big words - overview.


    "As we all know, optical fiber communication originated from a paper entitled" optical frequency dielectric fiber surface waveguide "published by Professor Kao Kun in 1966. Since then, some people have studied and published feasibility operation papers, forming" using transmitters to generate optical signals; Transmitting signals by optical fiber; A common understanding of the three processes of receiving optical signals and converting them into electrical signals by a receiver... "


    "Mr. long, you have to write on the blackboard. We can''t keep up!"


    Long Jianhua, who was talking incessantly, was suddenly interrupted by a middle-aged man under the stage.


    Isn''t this a professional? This is a simple programmatic thing. Do you also need to take notes?


    He asked tentatively, "is my Mandarin bad, or can''t you hear it clearly?"


    The middle-aged man waved his hand, "you can hear clearly. Mandarin is also good. We just want to write down what you say."


    This is trouble!


    Long Jianhua regretted it.


    When making slides, the production teacher deliberately asked, "can such a simple film work?"


    He said confidently, "they are all experts. They must be OK!"


    However, not really.


    Not only did he make this request, but many others made it.


    When preparing the lesson, he thought that not all the audience were his potential customers.


    But the fact is that this group of listeners are really his target customers, and everyone''s quality is quite high.


    He honestly went to the blackboard, picked up the chalk and wrote the keywords "Kao Kun in 1966" and "optical frequency dielectric fiber surface waveguide" on the blackboard


    Teacher Ye whispered with a smile, "if you can remember, others may not; You think people may know, but they may not know. "


    No wonder it took more than three hours. There were still mistakes in this regard.


    No wonder the production teacher secretly laughed there


    Teacher, are you reading my joke?


    Don''t you have another job? Why don''t you sit here?


    With the increase of blackboard writing, long Jianhua''s arms are covered with chalk ash


    One hundred and ten minutes later, Mr. Ye interrupted his lecture during the transition between festivals and announced a ten minute break.


    Long Jianhua felt his mouth was dry and his throat was smoking - there were reasons for the saliva flying away and the chalk ash entering the respiratory tract.


    It seems difficult to teach


    A 40-50-year-old man trotted onto the stage and shook long Jianhua''s hand. "Teacher long, you speak well. Many things have only heard their names. I didn''t expect you to explain so easily."


    Mr. Ye smiled, "Jianhua, this is Qi, deputy chief engineer of the Ministry of Posts and telecommunications."


    Before long Jianhua could say hello, deputy chief engineer Qi patted long Jianhua''s hand and turned to teacher ye, "Dean ye, you are a good graduate student. You speak very well. The combination of depth and depth makes people listen very comfortable, and the answers to questions are clear and profound... Go to the Ministry after graduation?"


    Is it so good?


    Why don''t I think so?


    Do you need others to find your beauty?


    However, through this 100 minute lecture, there are great discoveries.


    As when writing a scheme, some things automatically gather on the trunk; The feeling of speaking is to come at your fingertips without thinking at all.


    But it''s not all about not using your brain. When telling, you should cut out the things that appeared after the 1990s, otherwise the super outline is too serious.


    Mr. Ye smiled and looked at long Jianhua. Long Jianhua''s hand was still held by deputy chief engineer Qi. He didn''t expect to get such a high evaluation. He was embarrassed to say, "I''m only in graduate school now. It''s still early to graduate."


    As soon as the words came out, I knew that the food was bad again.


    I just told my teacher to graduate early and study for a doctor. Now I say it''s still early to graduate. Isn''t this self ruining your future?


    I can''t help complaining to the deputy chief engineer Qi that he ruined himself.


    Fortunately, many middle-aged and elderly students quickly ran to the stage, liberated his hand from deputy chief engineer Qi and rescued him from embarrassment.