Even though he had a strong mental state, Zhou Datu was speechless for a moment.

How

many months did it take you to get to this point?

You still put on a frustrated face in front of me? I thought you had been practicing for several years to be like this. He had this idea because he thought that if he was from an educational family, he must have started to cultivate since he was young.

But you told me how many months? !

After being shocked, he suddenly laughed and patted Xing Li and his wife on the head. Good guys! Young people are teachable.

Very good.

"Only when children are strong can China be strong!"

"The stronger the better!"

After giving the two of them a few words of advice, Zhou Datu came and went in a hurry.

The Zhou family also returned to the courtyard.

When the Qin family came, Uncle Zhou was obviously in a good mood. He kept talking to the younger generation about the past and his old relationship

with Qin Jiangke.

The Zhou family listened patiently without any signs of impatience.

Zhou Aihua hugged her knees and glanced at Qin Hongfei, then looked away and looked again. She couldn't help but move closer. Seeing that there was still room between the two of them, she moved closer, and closer... When she got closer, her mood suddenly improved and she said, "Grandpa often tells stories about your father."

Qin Hongfei turned her head, "Oh, what did he say?"

Zhou Aihua counted for her, "Your father is a good man, your father is very talented, your father is very smart, if it weren't for your father, there would be no Zhou family today..."

"He also said that your father can assemble all kinds of things. The first excavator on Qinhuai Street was assembled by your father. Don't you know?" Zhou Aihua was surprised to see Qin Hongfei's puzzled look.

You don't know?

You don't know.

She raised her hand, "Grandpa, where is the drawing you showed us before? Show it to Hong Fei."

Qin Hong Fei also looked over.

Uncle Zhou looked at Hong Fei and suddenly remembered something, "Yes, let me show it to you."

He asked the nanny to get it. Soon, an old small iron box was taken out. The old man opened the box and took out a yellowed paper from it, "Here, Xia Lu, this is what Jiang Ke left behind. This kid is amazing. You didn't make a mistake."

Qin Yun raised his head in surprise.

Qin Hong Fei was also startled, and soon took the yellowed paper with a normal expression.

It was a design drawing.

The drawing was divided into four parts, and Qin Hong Fei understood it at a glance.

It's better to say that it's an assembly machine than an excavator. It just uses the principle of the excavator. There is a difference, but... it saves money!

The drawing was made in 1985, 17 years ago.

The reform and opening up was in 1978. Qinhuai Street in 1972 should have been very backward. It was normal for people to want to save money because they didn't have much money.

Grandpa Zhou said with a smile, "At that time, I was still the captain of Qinhuai Street. At that time, we were poor. We spent every penny very carefully. We didn't buy soy sauce in bottles, but in cans..."

"The road in Qinhuai Street was also very bad. After Jiang Ke went to the city and came back, he said he wanted to build a road. To build a road, we need an excavator! There is one in the city, but it is too expensive and we can't afford it. So what should we do? We collected the parts and assembled it ourselves, and then we really assembled it for him..." "

Qinhuai Street had the first excavator in the nearby ten counties and eight townships. Everyone came to see it and borrow it. It was also praised by those who were transferred from the city at that time."

"Amazing, how come I didn't know about it." Qin Yun was shocked, he had never heard of it.

"..." Qin Hongfei didn't say anything, her own daughter didn't know, but Grandpa Qin had complained about it.

Her father liked to deal with strange things, so he opened that repair shop.

Because the repair shop can get materials that others don't want, he was sent to learn excavation technology at first, but when he came back, he was said to have no future in excavation technology, so he learned assembly technology, learned halfway, and then made a crane? It seems to be said that, right?

Grandpa said that, right?

Qin Hongfei thought at first that her father really didn't understand and was just lazy, but now it seems that it is not the case.

"Grandpa Zhou."

"Well, what's wrong?" Uncle Zhou seemed a little sleepy. Well, he was happy all day after the Qin family came and didn't go to rest.

"Did my father draw a picture of a crane?" Qin Hongfei asked.

"A crane." Uncle Zhou thought for a while, then looked at the iron box and pointed at it, "It seems so. When doing farm work, the cow had to plow the land. There was such a wide dirt road, which was not easy to pass, so it was used to lift the cow." "

I ran for him at that time! Running all kinds of materials, it seems to be in the notebook..."

"He was afraid that your grandfather would beat him, so he didn't dare to tell the family. At that time, he lied that the crane was bought in the city. In fact, he didn't have the spare money."

Qin Hongfei reached out and picked up the notebook. When he opened it, there were no pages in the notebook, but many pictures!

A thick stack, and a few sheets were stacked out.

Meng Yu looked over and was a little surprised!

She had met with Tu'an'er to discuss the work, and had also seen similar drawings, all of which were design structural drawings, and there were many of them.

There were preliminary prototypes of the excavation team, and also of the crane. There were

also some related designs of water source power machines, all sorts of things, some perfected, some not yet perfected, a lot, and covering a wide range. They should have been there a long time ago, and Qin Jiangke should have given up later, because Qin Hongfei often hung out with his father, and the most common thing he saw was repairs, and he had never seen him do anything else.

The more Qin Hongfei flipped through the pages, the more shocked she was!

She had always thought that her talent in research was learned after she arrived in another world, but now it seems... not necessarily?

Experience must be learned, but the foundation, perhaps it is something she already has, the genes passed down from her father?

She remembered that several of her teachers had said that she was very gifted in this area. It was true that she had worked hard, had perseverance, and had talent. She had not taken it seriously before, but later she had achieved success and thought it was just a genetic change. Now it seems that the teachers may have been right. It was the genetic genes that were there, so Qin Yan was the one who cultivated her, and that was why she was on this path.

As for why Ms. Xia Lu had not mentioned it.

Qin Hongfei guessed that Ms. Xia Lu might not know, or she might know but didn't mention it.

Because she is not reliable!

These design drawings, if you are not a professional, you can't understand them at all.

So Mr. Qin would say that the eldest son is messing around and burning money.

In that era, every penny counted, farming was a serious matter, and everything else was not a serious matter. Doing these things is just burning money.

I don't understand, so I have to hide it. No one knows how amazing these design drawings Qin Jiangke drew privately are! Naturally, no one has mentioned it.