However, he still recognized Wang Bin''s words very much, that is, if this engine can persist under such extreme weather conditions, what conditions can this engine not adhere to in the future.


    However, while Professor Zhang was thinking about this, the verification of the project finally came to an end after a half-hour test run.


    Although Professor poke was very nervous during the verification test run, after all, there were ice cubes with a diameter of one centimeter or even larger! But now I''ve survived.


    With the completion of the ice swallowing verification test run, the verified engine was disassembled by the laboratory staff again, a new engine was installed again, and the sand swallowing verification test run was started. Although the diameter of the sand used in the sand swallowing verification test run was not the same as that of ice swallowing, with sand with a diameter of one centimeter, However, the sand with the largest diameter should not be said to have reached 0.5cm.


    In addition, the hardness of sand is even higher than that of ice, so in fact, the sand swallowing verification test run is more stressful for the engine, but fortunately, in the end, the engine survived the half-hour verification test run like the previous ice swallowing verification test run.


    Following the success of these test runs, Professor poke finally relaxed his grip, and he was also very confident in the engine they developed. After all, this engine can run stably in such a bad environment. He really can''t think of any engine in the world that can match this engine.


    Of course, after the verification of so many subjects, the development of Professor Zhang and others has not ended, because there is another verification test run that has not been completed, that is, the verification of foreign body impact.


    After all, in the process of flying in the air, the aircraft will inevitably encounter the impact of birds, and even be directly involved in the air inlet of the engine, resulting in engine failure.


    In fact, in all aircraft accidents, the probability caused by bird impact is very large, so as an aircraft engine, it is also a very important performance for resisting the impact of birds.


    The last verification is naturally the anti-collision performance of the engine, and the birds they developed this time are not ordinary bird impact, but directly use a chicken as the protagonist of the impact. After all, most birds are national protected animals, so they don''t want to imitate bird impact this time, This led to him to sit in the class room.


    Of course, the chickens they use are not live chickens, but chickens that have long ended their lives.


    However, compared with the previous verification tests, Professor poke and others are not very nervous about the impact of imitating birds this time, because according to the design data, this engine can resist the impact of any bird, even birds as big as chickens.


    Sure enough, after changing the engine, these verification tests passed easily.


    "Well, today''s verification and test run projects all want to go smoothly, and the results are somewhat better than I expected. That''s all for today''s test run. Let''s get ready and disassemble these engines tomorrow to see the internal situation." when Professor Poke''s mind relaxed, he said to everyone.


    Similarly, as one of the persons in charge of the R & D, verification and test run of this engine, Professor Zhang suddenly relaxed after seeing the success of the verification and test run.


    However, when his mood relaxed, he felt as if something was wrong, he felt that his eyes were dark, and he felt that his hands and feet were useless.


    Just after Professor Zhang finished, Professor Zhang finally couldn''t hold on. He felt dark and finally lost consciousness.


    When Professor Zhang had just finished speaking, he also felt that there was something wrong with Professor Zhang. Before he could speak, he saw Professor Zhang fall to the side. Fortunately, he reacted quickly and hugged Professor Zhang in time.


    "Lao Zhang! Lao Zhang! What''s the matter with you? Wake up."


    "Lao Zhang! Lao Zhang!" Professor Dai also found the situation here and hurried over.


    "Professor Zhang!..."


    “.......”


    After Professor Zhang fell, the whole laboratory suddenly became very chaotic. Some picked up the phone and dialed the ambulance phone, some dialed Wang Bin''s phone, and others were at a loss.


    "What! Something happened in the laboratory, Professor Zhang fainted!" he was in the laboratory. When Wang Bin received the situation from the aerospace laboratory, he was very nervous. Even in his laboratory, he could not continue the unfinished experiment, but hurried out of the laboratory immediately, Towards the direction of the aerospace engine laboratory.


    Soon, Wang Bin came to the laboratory and saw Professor Zhang and others in Professor Zhang''s lounge. At this time, Professor Zhang was lying on the bed in the lounge.


    "Professor Zhang, how is Professor Zhang now?" Wang Bin hurriedly asked Professor Zhang, who was sitting by the bed, after coming to Professor Zhang''s lounge.


    "I don''t know what''s going on, but I think it''s not a big problem. It''s probably too tired. After all, the task of the laboratory has been too heavy. In addition to the engine being developed in the laboratory, Professor Zhang and others have to understand and upgrade the drawings of the large fighter, which is a lot of work.


    So during this period, Lao Zhang and his colleagues worked late every day and came to the laboratory early in the morning. Not to mention Lao Zhang and his age, even young people may not be able to bear such work intensity, "Professor Zhang said.


    "What? Work late every night and come to the laboratory early in the morning?


    Professor Zhang, why don''t you persuade them? Even if you can''t persuade them, you should tell me! "Wang Bin frowned and said.


    "Hey! We didn''t persuade them, but they didn''t listen. What can I do.


    I wanted to tell you this for a long time, but we didn''t tell you this time because it was the key period of our engine test run. We wanted to wait until the 150 hour endurance test run of the engine and the verification test run of swallowing ice and sand were completed. I told you, but unexpectedly, this verification test run of swallowing ice and sand happened just after it was completed At this time, the professor was also remorseful.


    At this time, Wang Bin also looked regretful. After all, if he had noticed the situation earlier, it might not have happened today.


    However, while Wang Bin was thinking about this, the siren of the ambulance came from outside the laboratory. Hearing this sound, Wang Bin and they hurried out of the laboratory with Lao Zhang on their back and came to the door of the laboratory, and the ambulance was just reaching the door of the laboratory at this time.