Chapter 75 As soon as Old Lady Yu finished speaking, Yu…

As soon as Grandma Yu finished speaking, Grandpa Yu came out. "You go ahead, I'm at home."

Yu Jiajia gave Old Man Yu another handful of melon seeds and candy before returning to her room. She studied the Qingnang Book and found that the Five Animal Frolics in it were quite different from the Five Animal Frolics in the system.

The Five Animal Frolics system is much more profound, and it also includes internal energy cultivation; it's an upgraded version.

The Five Animal Frolics in the Qingnang Book is a beginner version, which is more suitable for ordinary people to practice.

It's a bit far-fetched to try and explain how she came to know internal energy cultivation techniques.

Never mind, I'll go to sleep first.

That evening, the Yu family had a very lavish meal. Old Mrs. Yu made steamed buns with mackerel and pork, Yu Songyan stir-fried spicy mackerel and pork, served cucumber salad, wood ear mushroom salad, and mushroom soup.

Yu Songyan's cooking skills are getting better and better. He stir-fried the roe deer meat with a spicy and numbing flavor. It was so flavorful that everyone was sweating from the spiciness. But this spicy and numbing flavor is really addictive.

The meat buns are incredibly delicious and flavorful; every bite is packed with meat, making them very satisfying.

Finally, a bowl of mushroom soup completes the meal perfectly.

After dinner, they talked for a while. The matter of going up the mountain to look for gold mines was a top secret, and not a word of it could be told to anyone. Only Yu Songqing and Yu Songyan could be told. The matter was going very smoothly.

The two understood immediately: they had found a gold mine.

What does a gold mine look like?

After eating and drinking her fill and taking a good nap in the afternoon, Yu Jiajia wasn't sleepy anymore, so she went to the street to play with the other children and took the opportunity to check in her good deeds for the day.

Cheng Xiuying was worried about Yu Jiajia going out alone, so she went out with her to chat with people, keeping Yu Jiajia within her sight.

Yu Jiajia felt very safe with Cheng Xiuying.

[Coca-Cola x2 + Intermediate Needlework Skill x1 (1/3)];

[(Speed ​​+1) * 1 + Intermediate Needlework Skill * 1 (2/3)];

[(Whitening +1)*1 + Intermediate Needlework Skill*1 (3/3)];

Yu Jiajia felt that the intermediate needlework skill was a bit useless; she wanted the advanced skill required to build a technologically advanced nation! Could it be that the system had discovered she was always asking children to train her skills?

I want to drink a Coke.

The next day, Yu Jiajia ate breakfast and went to work with Cheng Xiuying.

She is now eager to serve her country and wants to use the system to contribute to the nation. However, sitting in the office, doing nothing but reading newspapers and drinking tea, she really doesn't know which direction to take, so she went to find Yu Songqing.

Because of Lu Xiaoqing, Yu Songqing had become disillusioned with the world and devoted himself to his work. He was not in the office at the moment, but in the workshop.

The workshop was sweltering, the air thick with the smells of rust, machine oil, and sweat. When Yu Jiajia found Yu Songqing, he was half-stuck inside the gearbox of an old Soviet-style rolling mill, covered in oil, his expression intensely focused.

An experienced craftsman stood by, anxiously rubbing his hands.

After a while, Yu Songqing shrank back, said a few words to the old master craftsman, and then worked together with several workers to put a huge protective cover back in place.

He waved his hand, and a worker switched off the power.

The machine emitted a heavy hum before starting up. A small cheer erupted in the workshop, and the old master craftsman's furrowed brow finally relaxed: "Engineer Yu! Thank you so much! If it had stopped for even a day, the entire production schedule would have been delayed!"

Yu Songqing waved his hand, picked up a dirty gauze to wipe his hands, and turned his head to see Yu Jiajia leaning over to look at the machine.

Yu Songqing was somewhat surprised: "Jiajia, what brings you here?"

Yu Jiajia asked, "Big brother, what's wrong with the machine?"

Yu Songqing sighed and gestured with his chin towards the rolling mill that had restarted: "The same old problem, the heart is broken. The core pair of large transmission gears are worn out too much, the tooth profiles are almost flattened, and the meshing gap is getting bigger and bigger." Afraid that Yu Jiajia wouldn't understand, he explained further: "It's like two gears that should be meshing tightly together are now loose and even knocking against each other. As a result, the speed and pressure of the rolls are unstable, the thickness of the rolled steel plates is naturally uneven, and the scrap rate is high."

Yu Jiajia immediately understood, "Why didn't you repair the large gap? I see that the old part you just replaced was also worn."

Yu Songqing glanced at Yu Jiajia again. He hadn't expected Jiajia to know this. He said, "What should we use to repair it? Steel? It's not hard enough. It can be polished overnight, and the slag that falls off can ruin the entire gearbox."

Yu Jiajia suddenly realized that this was not just a problem of the steel rolling mill, but a comprehensive backwardness of the entire country's industrial base system.

She knows a little bit.

Creating an alloy of this strength is extremely difficult, but it's possible to utilize waste materials. This can be achieved using thermal spraying technology.

"If we can't find high-performance alloys to make new parts, why not grind the scrap high-hardness alloys into powder, heat the metal powder to a semi-molten state, and 'spray' it onto the surface of the worn gears, and then weld it on? The hardness would be sufficient."

silence.

The deafening roar of the workshop seemed to fade into the background noise at that moment. Yu Songqing stood frozen in place, still clutching the greasy gauze in his hand, as if he had been immobilized.

His eyes widened, Yu Jiajia's idea replaying in his mind, "Hot...spray...welding?"

He repeated this completely unfamiliar yet crucial word slowly and deliberately.

Is this even possible?

Why can't it be like this!

He suddenly ran out, and Yu Jiajia quickly lifted her skirt and chased after him. "Big brother, do you know how fine the powder needs to be ground? Do you know what temperature to heat the powder? Do you know how to solder it?"

Yu Songqing didn't know, but Yu Jiajia's words gave him a new perspective. People of this era have their own wisdom, and even just a few words are enough.

Yu Jiajia couldn't catch up with Yu Songqing. She took a few steps and then stopped. How did she know her older brother didn't know?

She wandered around for a bit and saw a little girl carrying a bunch of things. She went over to help and carried the things into the workshop. Having earned [Great Unity*5, Intermediate Materials Science Theory (1/10)], she happily returned to her office.

After a while, the section chief came over and brought good news: the entire section would receive a raise, and Lin Mei would be promoted to a permanent position.

Everyone clapped together, "Great!"

Yu Jiajia is currently at administrative level 22, earning a salary of 55 yuan. If she is promoted to level 21, her salary will be 60 yuan!

That's an extra five yuan a month! And the number of receipts and bills will also increase.

Section Chief Chen called Yu Jiajia to his office and said to her, "Congratulations Jiajia on your raise, and congratulations to your mother on becoming the deputy director of our factory."

Yu Jiajia: "!!! My mom became the deputy factory director?"

Section Chief Chen nodded: "It was just announced at the meeting."

He was truly envious. In just half a month, he went from being a squad leader in the security department to the head of the security department, and now he had directly become the deputy factory director.

Section Chief Chen then tentatively asked Yu Jiajia what she had been doing the past two days, and Yu Jiajia looked embarrassed.

Section Chief Chen smiled and said, "You want to keep it a secret, right? You can't just not tell me if you can't."

It was lunchtime when Yu Jiajia ran to find Cheng Xiuying. Cheng Xiuying was overjoyed; she had become the deputy factory director, mainly responsible for factory safety.

Her apprentice, Chen Hongmei, has become a deputy section chief.

Everyone is incredibly envious of Cheng Xiuying. How could an ordinary person have such an opportunity or such ability!

Everyone envies Chen Hongmei. She found the right mentor and became the deputy section chief! Will she become the head of the security department in the future?

Yu Jiajia ran to Cheng Xiuying, "Mom!"

Cheng Xiuying spoke a few more words to someone, gave some instructions about her work, and then took Yu Jiajia to the cafeteria for lunch.

Yu Jiajia: "Deputy Factory Director Cheng, how are you feeling right now?"

Cheng Xiuying gently patted her chest: "Excited! My heart is pounding, and walking feels like walking on cotton, like a dream."

Yu Jiajia: "Mom, if I pinch you, you'll know this isn't a dream! Our family's ancestral graves are emitting auspicious smoke, producing our first deputy factory director! Mom, I'm so proud of you."

Cheng Xiuying grinned from ear to ear: "My darling, I'm only doing this because of you. Otherwise, I'd still be the squad leader of the security department."

She had been behaving very composedly, after all, she was the deputy factory director, so she couldn't just grin like that. But now, with her daughter, she really couldn't help herself and smiled very brightly.

Cheng Xiuying actually became the deputy factory director.

We had to celebrate at noon, so the two of them ordered a boiled fish and two bowls of rice, and they ate with great relish.

They completely forgot about Yu Songqing.

By the time people finished get off work in the afternoon, many knew that Cheng Xiuying had become the deputy factory director, and they greeted her with "Hello, Director Cheng" all the way home.

Cheng Xiuying was overjoyed.

Even better! The Cheng family has been allocated a house—a large 110-square-meter house right next to Director Li's house in the cadre building. It has four large bedrooms, a living room, a kitchen, and a separate bathroom, and is fully furnished. Cheng Xiuying has already seen it and has the keys; she's just waiting to move in.

Cheng Xiuying first took Yu Jiajia to see the house.

The room has been repainted, the windows are bright, the room is spacious, and the furniture is complete.

A dark brown chest of drawers stood by the window, its wood grain still clearly visible on the surface. In the center sat a small, light yellow square table, next to which was a long bench with a backrest.

Cheng Xiuying gently stroked the smooth countertop, liking it more and more as she looked at it. She turned to Yu Jiajia and smiled, "Sweetie, come on, there are four rooms, pick your favorite one!"

Yu Jiajia, like a happy little bird, pushed open each bedroom door carefully to take a look. Finally, she pointed to the most spacious room and arranged everything clearly: "This biggest room is for Mom and Dad! My third sister and I will live next to them. The balconies of these two rooms are connected. I love it so much! We'll sit there at night to cool off and watch the stars. It will be so comfortable!"

Cheng Xiuying: "I'll put a rocking chair on the balcony and a small table, so we can drink tea, read books, and enjoy the breeze every night."

Next, I looked at the kitchen and bathroom. The bathroom is a squat toilet with a flushing function, and there's a shower next to it. It will be so convenient to take a shower and use the toilet in the future.

The two looked at the place again and again. Cheng Xiuying wished she could move in that very night, but moving was a big deal, so they had to choose a good day, and they also had to pack up their things.

It was already past seven o'clock when the two got home.

Grandma Yu: "Why are you back so late today?"

Cheng Xiuying, looking completely nonchalant, placed a bunch of keys on the table: "The factory allocated apartments for cadres, so I just got the keys, which took a little longer than expected."

Grandma Yu was stunned: "A cadre's house? An apartment building?"

Cheng Xiuying nodded calmly, her upturned lips barely concealing her smile.

The room fell silent for a moment; everyone was stunned by this incredible good news.

Yu Jiajia cleared her throat and, imitating the passionate tone of the broadcast, spoke in a bright and clear voice, enunciating each word perfectly: "Attention all family members! We are now broadcasting some very exciting news! Let us give a warm round of applause to Comrade Cheng Xiuying for her official appointment as the deputy director of our steel rolling mill! Applause!"

She took the lead in clapping enthusiastically, her little face full of pride and excitement.

Old Yu seemed not to have heard clearly, craning his neck forward, his voice splitting in shock and excitement: "What?! Deputy...Deputy Factory Director?!"

Grandma Yu cried out, grabbing Cheng Xiuying's arm, her voice trembling: "Xiuying! Is what Jiajia said true? You...you really became the deputy factory director?"

Yu Songyan clapped his hands: "Mom, congratulations!"

Yu Jiamin clapped along, saying, "Mom, congratulations!"

Cheng Xiuying could no longer suppress her laughter and burst into a hearty laugh.