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Liang Yuan finally fooled his mother. When I returned home and lay on the sofa, I watched Li Yuanling pack up the gifts sent over in the morning, most of them were malt cream, royal jelly or something, and a thin envelope, Li Yuanling wrote down the money in the envelope one by one into a small notebook, although it was said that she would return it in the future, but who dared to ask for the gift money from the boss, and she had to find a chance to add some more thoughts and send it back. Alas, it's better to serve the people, it's tiring to be the master of the house. Liang Yuan stood up, took a popsicle in the refrigerator and returned to his room.

Looking at the winter vacation homework on the desk, Liang Yuan's head got bigger again, and he had to hurry up, otherwise as soon as he entered the school gate, it would be as deep as the sea, and it would be very difficult to escape, so he picked up the winter vacation homework on the desk first, and Liang Yuan waved his pen and completed all the Chinese and mathematics in 20 minutes. After recalling the three elements of mechanical drawing that I learned in college, I found a blank piece of paper and drew the basic composition of the air conditioning fan.

The principle of the air conditioning fan is very simple, spray cold water on the absorbent fibers such as cotton or silk with a water pump, form a thing similar to a damp door curtain, and then make a sealed channel next to this curtain, and install the suction fan at the other end, the fan turns, and the hot air is filtered and cooled by the cold water curtain, and the moist cold air is discharged from the back of the suction fan. It's cool behind the fan.

After Liang Yuan finished the sketch, he wrote a general bill of materials for the components, and simply drew a few finished air conditioning fan appearance drawings and product dimensions, and he was not only very grateful to the professor of mechanical drawing who was known for his severity in college.

Can it be done in one fell swoop, Liang Yuan found the 'National Youth Science and Technology Innovation Competition: Preliminary Competition Rules' given to him by the head teacher during the winter vacation.

"The code says that it is better for inventions to have physical objects. Liang Yuan said to himself. Liang Yuan took the freshly drawn drawings and returned to the living room with the rules of the competition. said to Li Yuanling, who was sitting on the sofa reading a book, "Mom, I'm going to participate in this." Li Yuanling took it and looked at it carefully and said, "Okay." Liang Yuan took out the sketch he had just drawn and let Li Yuanling see it, Li Yuanling took the sketch and looked at it, smiled and said, "Xiaoyuan's drawing is good, it's very standard." ”

Li Yuanling looked at it in detail for a while, her professional heart exceeded her mother's heart, and she lashed out at several unreasonable places in the sketch, saying that the fan radius parameters were unreasonable, and in the blink of an eye, the sketch was criticized as worthless.

Liang Yuan looked at his mother who had entered the state with a wry smile, full of emotion. My mother liked the blue sky when she was very young, and she couldn't choose to fly because of her physical condition, so she pinned her blue sky dream on the major she studied, dreaming that one day, looking at the engine she designed herself, she would send the plane into the blue.

It's a pity that the reality is extremely cruel.

His mother's mentor, Professor Wu Zhonghua, was well-known in the international aviation community, and once worked at the famous Lewis Jet Propulsion Center of Midi, and founded the famous ternary flow theory of turbomachinery.

In that special era, even petty revisionists like my mother had to be re-educated, and reactionary authorities like Wu Lao had to step on 10,000 feet.

Wu Lao's turnaround originated from the introduction of Spey aero engines in the UK in the 70s. At that time, Rolls-Royce asked for 800,000 pounds for an ordinary technical document, and the aura of the negotiating team's political excellence was actually resisted by the British, and no one could get the British at the negotiating table. Wu Lao was ordered to be in danger and was taken out of the cowshed. At that time, Wu Lao took the British's Wen Jiàn reasonable and temperate and criticized, the British saw that this guy was knowledgeable, and asked the name like thunder, his engine was built according to other people's theories, and he talked about a P, but as a result, the price of various technical texts shrank rapidly, and in the end he could only make a big profit on the equipment.

After Wu Laohui's work, Rolls-Royce of the United Kingdom, General Motors of the United States, and Pratt & Whitney rushed to invite Wu Lao to visit wèn, and when Wu Lao visited Wèn, he could visit the power heart F119 developed by Midi for the generation of god machine F22. At the same time, the "Peace Pearl" plan carried out by the military and Midi, we were close to the Midi to help us transform, and our own J-8 fighters could not do it. The status of the rivers and lakes is clear at a glance.

Mom is going to contact Wu Laohui, Liang Yuan tried to recall. After Wu Lao retired in May this year, it took a month to find his mother, the youngest disciple in the past.

Liang Yuan silently looked at his mother, who was talking about the fan......

Li Yuanling suddenly suppressed her voice and laughed self-deprecatingly. Looking at his son, who was sitting on the other side of the sofa, with a stern face and an effort to listen, he beckoned to Liang Yuan. The heart said forget it, a warm and harmonious family, a smart and lovely son, what else do you want

Li Yuanling teased her son who was standing in front of her and asked, "Xiaoyuan listened so carefully just now, how much did you understand?"

"I didn't understand anything, but my mother looked like she was very powerful. Liang Yuan said the signature slogan of the soy sauce party in his previous life seriously. Li Yuanling was amused by Liang Yuan, thinking that God had already treated me well. hugged his son fiercely and said, "Mom will help you change the number of sketches, and then you are sending the sketches to the Children's Palace." ”

Liang Yuan felt the strength of his mother's hug for him, and thought to himself, after all, his mother still couldn't let go of the blue dream in his heart.

In the evening, when Comrade Lao Liang returned home, Li Yuanling took out the drawings and bragged to Lao Liang. The core is: see no, how good my education level is. In front of his son, Comrade Lao Liang naturally couldn't sit still, but after a few words, the building was crooked. Comrade Lao Liang casually said a place on the drawings that is not easy to achieve in the project, Li Yuanling naturally refuted it and said that theoretically this is the best, but you can have a better solution, but the result became Comrade Lao Liang's thorn, Li Yuanling refuted, and Comrade Lao Liang made up for the omission...... This war of words lasted until bedtime at night

Liang Yuan was so happy, after all, he was still young in his previous life, and he didn't know what the industrial level was like in the 80s, whether this air conditioning fan could be made, and what parts had not yet been popularized and how to replace them were confused. Comrade Lao Liang retired as an artilleryman, and although his educational background is not high, his practical ability is absolutely first-class. Usually Liang Yuan is engaged in demolition at home, and Comrade Liang is basically wiping his butt in the back. After this night, the sketch can be said to be basically mature. Liang Yuan is modifying the bill of materials written in the afternoon, optimizing an assembly process, and the rest is to adjust and configure the original parts of the original to meet the design standard of the trial production steps.

The air conditioning fan is finally infinitely close to completion. Liang Yuan let out a sigh of relief, and the first step of the truancy plan was finally completed.

The next day, I just opened my eyes half-open, and I was still confused.,I heard the sound of two Lori's chirping outside.,And then the door was opened.。 A loli jumped on the bed, put her cold little hand directly into the quilt, and put it on Liang Yuan's neck. Liang Yuan was excited, and all the drowsiness disappeared. The atmosphere of sleeping until you wake up naturally is completely destroyed.

"Fei Fei, I'm not done with you. Before Liang Yuan could stretch out his hand, Ning Wan Feigege smiled, jumped out of bed neatly and ran back to the living room. Liang Yuan put on his clothes angrily and came to the living room. I found that the two Loli were still dressed yesterday, but they wore a pink trench coat outside, and their hair was not equipped with any accessories, and they were all tied in a generally high ponytail. The twins sat side by side on the couch, legs together, knees brushed diagonally to the left.

Seeing Liang Yuan come out, the twins said in unison: "Xiaoyuan, you are so lazy, you are still in bed so late." Liang Yuan sighed, knowing that he couldn't take revenge, Li Yuanling would never help him correct which one was Fei Fei. "Feifei, you are so cruel, I didn't go to bed until the second half of the night last night. Liang Yuan yawned as he walked towards the bathroom. Leaving behind him, the two Loli smiled crisply.

Liang Yuan came out of the bathroom after washing up and found that the food was already on the table. Liang Jiangping went to work early and ate breakfast alone. At present, during the winter vacation, Li Yuanling eats with her son who is lazy every day. The two Loli ran over without breakfast, and asked Liang Yuan to go to the City Children's Palace together.

In order to cultivate her daughter's temperament, Tang Wan enrolled the sisters in the dance class of the Children's Palace. Ning Wanjia is obedient, she loves dancing very much, and she learns very hard. Ning Wanfei was not interested in this, but became interested in martial arts and karate classes. In the end, Tang Wan compromised and complied with Xiao Nizi's wishes, this is the sisters' third holiday training.

Liang Yuan reported at the Children's Palace for a radio and aeronautical model class. A few years ago, Liang Yuan successfully assembled a dual-channel remote-controlled aircraft, and hung a caterpillar under the plane, chasing Ning Wanfei around, scaring Ning Wanfei and yelling. From then on, Ning Wanfei had a negative attitude towards Liang Yuan's so-called inventions, and Ning Wanjia admired Liang Yuan very much for being able to come up with some strange things from time to time.

Liang Yuan picked up a flower roll and said to the twins: "I am also going to the Children's Palace today to send the entries." "Wow, what is it, when did you invent it, Xiaoyuan, why didn't I see it?" "It won't be like that water-filled tire last year" At this time, you can tell which one is Jia Jia and which one is Fei Fei.

Liang Yuan smiled and said that when the thing is made, I will give you one first, and I guarantee that you like it.

Listening to Liang Yuan's boasting, Ning Wanjia gave Liang Yuan a big sweet smile, and Ning Wanfei gave Liang Yuan a big white eye.

After breakfast, Ning Wanjia took out a pink bow from her small backpack and tied it on her ponytail. In addition to pranks, Ning Wanjia usually likes to tie bows in her hair, but Ning Wanfei likes to tie bells. In daily life, teachers and classmates rely on this to distinguish the two sisters.

Liang Yuan picked up the fruits of his labor last night, "The Principle and Design of the New Air Conditioning Cold Fan", and asked Li Yuanling for 50 yuan to go out of the house with two Lori.

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