Scholars in the courtyard

"Boohoo!"

Xiaowei is a little anxious, she can't wait to grow up quickly now.

When the time comes, you can follow your master and serve him.

"Don't worry, don't worry, let me take a look first!"

Yang Xiaotao said, then glanced at the items in the exchange column.

Items in the exchange column: chicken skewers (5 skewers/minute), pork skewers (3 skewers/minute), mutton skewers (2 skewers/minute), beef skewers (1 skewer/minute), unknown book (5000 credits. 29:55) "

Other things are fine, summer is the time for barbecue.

In addition, there were a lot of beers in the space, so Yang Xiaotao didn't think much about it.

The last icon is a book, and the specific content is unclear.

At first he thought it was a barbecue stove.

I smiled in my heart, then looked at the label at the back, and my heart tightened.

Five thousand credits!

This is all just in time for upgrading sub-skills!

But with the urinary properties of the system, you definitely get what you pay for!

The more credits there are, the higher the value.

Five thousand credits are enough to show how precious it is.

What's more, there is a timer at the back.

I just don’t want people to get it easily in such a short time!

Definitely good stuff.

It's just, too expensive.

"Owner!"

Xiaowei's urging came again in her ears. She didn't know what was inside, but she just had to buy it.

"I know, I know!"

Yang Xiaotao dealt with it in his mind, and then focused on the icon in the book.

Don’t think about the other strings, they must have nothing to do with Xiaowei.

And the one where the positions can be somewhat related is probably this book!

Thinking of this, Yang Xiaotao looked at his credits. He was just over 10,000, and now he was about to cut it in half!

‘Do you want to use five thousand credits to redeem items? ’

The system prompt sounded again, and Yang Xiaotao no longer hesitated, "OK."

Five thousand credits quickly disappeared from the system panel, and then a thick stack of books appeared in his hand. At first glance, there were more than ten books.

"I'll go, there are so many!"

Originally, Yang Xiaotao really wanted to see what kind of book it was. After all, books also have colors and are divided into categories.

If he spends five thousand credits to buy a small book and some useless books, then he will have to think carefully about these unknown items in the future!

A stack of books appeared on hand. Ran Qiuye felt something on his back and was about to turn over. Yang Xiaotao quickly put the things into the space.

The next second, Ran Qiuye moved his body, raised his head in a daze, and then continued to sleep on Yang Xiaotao.

The two have been together for so many years, and what she likes most is sleeping in Yang Xiaotao's arms.

Not cold or hot, but still feeling safe.

When Yang Xiaotao saw Ran Qiuye lying down again, he reached out and patted her out of habit, as if to coax a child to sleep.

On the other side, Xiaowei flew into the space when she saw the book disappearing from Yang Xiaotao's hand.

The next second, Xiaowei's aggrieved voice sounded.

"Why, why not!"

"How abominable!"

After saying that, he flew out of the space again, whizzed out of the window, and disappeared.

I guess my heart is hurt!

Yang Xiaotao couldn't comfort him either. After all, he couldn't control the things in the exchange column!

Yang Xiaotao thought, but put his mind in space.

"Huh?"

Yang Xiaotao was surprised when he glanced at the title of the book at the top.

"Introduction to artillery radar!"

Artillery radar?

Yang Xiaotao thought about it in his mind, and then continued to look down.

Reading each book one by one, even just the title of the book, allowed him to understand what he had exchanged this time.

In his previous life, Yang Xiaotao didn't know much about this thing. He only remembered that this thing was used to test the trajectory of artillery shells, and then reverse the position of launching the artillery shells, thus destroying the opponent's artillery.

When watching movies in his previous life, Yang Xiaotao often saw a staff officer gesticulating on the map, then quickly reporting the location, and then the protagonist shouted, "Kill it for me!"

But Yang Xiaotao also knew that it was all wishful thinking of the director and screenwriter.

Most of the time, if you want to defeat the opponent, you need a long period of detection. This involves aircraft observation, scouts approaching for close inspection, and various means for testing.

Then it takes multiple attacks to knock out the opponent's artillery.

As for the artillery detection radar in the books in front of me, to put it bluntly, it uses radar waves to test the trajectory of artillery shells, and then completes the counterattack through calculation and testing.

At this time, if you are quick, you can complete the counterattack within one minute.

And if specific goals are given, the success rate is very high.

It's fast, accurate and saves ammo.

What a good thing!

Yang Xiaotao praised in his heart, but soon frowned.

"I don't object to letting me build this radar. After all, the Ordnance Research Institute also has projects, right?"

"But, why don't you just give me the drawings?"

Yang Xiaotao was a little speechless. In the past, people in the exchange column were directly given design drawings.

Just like the current engine work, isn't it just a room full of blueprints?

That's great. Instead of giving me design drawings, I give you books. Is this because I don't have enough time to read? Do you want to remind yourself to read more?

But how can I have time to read?

"Do you want to send it out? Show it to professionals?"

An idea came to Yang Xiaotao's mind. After all, his energy was limited. He had been working on an engine for more than half a year and it was not finished yet.

This radar, at first glance, seems to be rather technical. It requires learning and a lot of professional knowledge...

It will take at least a year or two to learn it by yourself!

Yang Xiaotao thought about it and made a decision.

I will leave it to Liu Xiangdong when I go back.

As for the source of the book...

Yang Xiaotao was thinking about how to explain it, but he saw a small line of words appearing at the corner of the last page of the book.

"This product is a personal property and cannot be lent to others!"

There is also a danger symbol below the small words, and then two words are written below.

Self-destruction.

What does this mean?

Yang Xiaotao only thought for a moment and understood it instantly.

"It seems that I should read the book and learn it by myself!"

He understood it in his heart, and at the same time, he was sure that these books and materials should not be the products of this time and space.

Thinking came out of the space, felt Xiaowei's presence, and then hugged his wife to sleep.

The next morning, everything in the village was normal, and there were people around the greenhouse, busy and bustling.

Yang Xiaotao stayed in Yangjiazhuang for a week. With the efforts of everyone, the support of the people around him, and especially when Xiaowei turned grief and anger into strength.

All the greenhouses in Yangjiazhuang are planted with Artemisia selengensis.

The seeds in the first greenhouse have sprouted, and the green buds have broken through the soil, making the villagers very happy.

Finally, it was not in vain.

After the replanting was completed, the exact news from the northwest was also transmitted.

Affected by the continuous hail, the loss of Artemisia selengensis planted in the northwest was within one-quarter to one-third after inspection.

This is similar to the calculation of the old dean at the time, which is much better than the estimated situation.

At least, it can guarantee the use of the pharmaceutical factory for a long time.

Moreover, the locals are also rushing to replant.

As for whether they can catch up, it is hard to say.

However, these are trivial matters for everyone in Yangjiazhuang. After planting in the greenhouse, they invested in corn planting again.

Yang Xiaotao stayed in Yangjiazhuang for a week, and sorted out the greenhouse affairs, so he took Ran Qiuye and Miaomiao back to Sijiucheng.

Siheyuan

I haven't been back for more than a week, and the yard is still the same, with workers going to work, a wife looking after the house, and a group of sensible and ignorant children.

The atmosphere in the yard is completely different from that in the village.

Here, if you have a stable job, life will be very comfortable.

You don't have to get up early every day and work until midnight every night.

You don't have to worry about the weather tomorrow, let alone think about the unfinished work in the fields and what to do if there is no food.

People living in the Siheyuan think about the long-term.

People in the village are more concerned about the immediate worries.

Perhaps this is why country people want to move to the city.

Yang Xiaotao brought his family back, and the yard was naturally more lively.

The neighbors were all around, talking about what happened in the yard.

Knowing that Yang Xiaotao was back, Ran's mother brought the children here specially.

The three little guys haven't seen their parents for so long, and they are very warm when they meet.

But they soon recovered their true colors and played in the yard.

Yang Xiaotao listened to the situation of the machinery factory. These family members didn't know much, but from the clues, Yang Xiaotao was able to grasp the situation of the machinery factory when contacting the target of the machinery factory.

However, Yang Xiaotao chose to stay at home and did not go to the machinery factory.

This week, he only slept four hours a day on average, which was a big burden on his body and mind. It was just right to take a rest.

In the backyard, Cuiping came to meet Ran Qiuye. Yang Xiaotao was proud that Yu Zecheng was almost well. He couldn't stay idle at home and went out to work!

Yang Xiaotao didn't ask much about the joint working group, but from Cuiping's expression, it can be seen that things should not be going smoothly.

Otherwise, why didn't anyone come from Shanghai?

It is estimated that there is no development.

Yang Xiaotao didn't ask much, said a word to Ran Qiuye, and rode his bicycle, took the fishing rod and left the courtyard.

When he came to the old place, Yang Xiaotao glanced around and saw that there were quite a few people fishing.

Although he didn't come many times in the past six months, he could see a group of people every time he came.

Whether it is for hobbies or for the family's stomach, there are more people fishing than trees around.

Yang Xiaotao even suspected in his heart that the fish in the water can grow fast, which has a lot to do with the feeding of these fishermen.

After finding a place with few people, Yang Xiaotao took out the fish food prepared in the system, and then put the bench and wooden barrel in place, and then observed the water surface and adjusted the float.

After a while, Yang Xiaotao put the fishing rod on the wooden support, the fishing line was thrown far away, and the float rose and fell in the wind-blown ripples.

Underwater, Xiaowei was swimming among the water plants, running here and there from time to time.

The cheerful atmosphere infected the surrounding water plants, stirring the bottom of the water to surge and become turbid, so that the foraging fish stayed away.

Soon, the nearby fishermen felt that the underwater movement was a bit loud, and the float was swaying from side to side. From time to time, they raised the rod, but all they caught was water plants.

Yang Xiaotao did not restrict this, just let the little guy relax, relax, adjust his mentality, and continue the next work.

But this way, the difficulty of fishing has increased a lot!

Yang Xiaotao saw Yan Fugui standing up not far away, frequently raising his rod, and the smile on his face was defeated by disappointment again and again as the water plants he caught were caught.

After looking at the float, Yang Xiaotao retracted his gaze and took out a book from his backpack.

"Signal Detection and Evaluation"

This is a book about radar.

When in Yangjiazhuang, Yang Xiaotao had read almost all of the books during the break.

Relying on his memory, he remembered most of the contents.

However, even if he remembered them, Yang Xiaotao still felt that he didn't understand many parts, and he could only remember a small part.

This also made Yang Xiaotao feel what it means to be separated by mountains.

But it's better to read than not to read.

At least he can have a basic impression of radar.

Yang Xiaotao plans to read all the books, understand the general framework, and then read them carefully.

As for the time.

Let's set it for one year!

Opening the page and turning to the last mark, Yang Xiaotao plunged into it again.

The wind blew, the trees behind him rustled, and the hanging fishing line was bent by the wind, and more ripples appeared on the water.

"Ding, the host has roughly read "Signal Detection Evaluation" and obtained 15 credits!"

As Yang Xiaotao finished reading the last page, the system's prompt sounded on time.

Yang Xiaotao closed the book, and his face showed an expression of "as expected".

"It's really rough! This level is really accurate."

"But compared to when I first read Water Margin, there are ten more points."

"So, the quality of this book is still very high."

Yang Xiaotao knew that he had to continue reading this book and continue to comprehend it.

Put the book back in the space, then stretched his neck, checked the time, and said to Xiaowei in his heart, "It's time to get down to business!"

The next second, Yang Xiaotao picked up the fishing rod and shook it hard, and a foot-long carp broke out of the water, attracting envy from those around him.