Li Er, who came in together, couldn't believe his eyes when he saw his third sister's appearance like a little girl.

This is still the majestic female general, his arrogant and unruly third sister? Is this the look of a love-in-law girl when she sees her lover?

"Cough, cough..."

After being surprised, Li Er coughed a few times and reminded his third sister that he was still watching that.

"What are you coughing? Go out and cough for a while, I will say a few words to Li Yu." Li Xiuning directly bombarded Li Er away.

"You guys talk, I'll go out for a walk." Li Er saw his third sister's appearance at this time, and hurried out without saying a word.

"My God! I have driven my brother away for the sake of my lover. Are you still my sister?" After Li Er left, he murmured in his heart.

Li Er ordered to the maid: "Don't let someone disturb my third sister for the time being."

...

Li Xiuning looked at Li Yu with affectionateness for a while. She found that this guy had changed a lot this time. He felt inexplicably inexplicable. She felt so excited that she was so excited that she blushed and then turned red. She whispered softly: "You are back!"

Li Xiuning's tone of questioning now seemed to her wife's greeting words after she waited for her husband to come back, which was completely different from her previous personality. Li Yu was slightly shocked.

"Well! I'm back, are you okay!" Li Yu asked with a smile.

"I'm not good. You don't even say hello when you go out. Do you know? I'm always afraid that you're going out at home, but you bastard don't even have any news." Li Xiuning said his longing and finally scolded Li Yu for being a bastard.

After saying that, Li Xiuning's tears flowed down her cheeks.

Seeing that Li Xiuning's usual arrogant personality became the appearance of a little girl now, the string deep in his heart seemed to be plucked down, and Li Yu was at a loss and didn't know how to comfort her, so he had to walk forward, gently wipe her tears with the back of his hand, and hug her in his arms.

Li Xiuning has never been hugged by a mature man when she grew up so old. She was both angry and shy, and felt that his arms were so warm. She actually had a hint of clear spirit, which made her feel very safe and warm. She forgot to resist, and she didn't want to resist. She was hugged by Li Yu like this, and she enjoyed this warm scene.

"Li Yu, I miss you." Li Xiuning whispered in Li Yu's ear, saying very bold words in this era,

After saying that, she looked up at Li Yu.

Li Yu saw her pitiful and charming beauty, smelling the faint body fragrance on her body, his heart pounded and his breath became hot.

Now language is something unnecessary. As her lips slowly fit together, he couldn't help but tremble. Seeing her eyes were foggy and moist, her face was flushed, and small beads of sweat oozing out of the tip of her nose, her lips were slightly open, revealing the tender and moist tip of her tongue, pure and charming. His adorable look made him unable to help but bow his head and hold her lips.

The sudden kiss caught her off guard like a storm. The fragrant sperm was slid between the tangled tongue, and her mind was blank. She just closed her eyes obediently, as if everything was taken for granted. She forgot to think about it. She didn't want to think about anything now, and she felt very tired and very tired...

I just instinctively wanted to hold him tighter, tighter, so that I could completely belong to him.

"Woooo~~~ I'm breathing." Li Xiuning, as a novice, couldn't breathe, but her face was flushed with a suffocation.

Lip part!

Then Li Xiuning woke up in shock. He was a married woman. If he did such a thing, he would be a rude woman. He suddenly pushed Li Yu aside and said, "Li Yu, I am still a married woman now. We can't do this now, otherwise I will look down on myself. When I get divorced from now on, I will be yours in the future."

However, Li Xiuning did not tell Li Yu that Li Yuan did not agree to her request for reuniting last time, and she planned to wait for a while to tell Li Yu.

After saying that, Li Xiuning blushed and shyly turned around and left quickly.

"Xiu Ning, don't leave now, I'm going to look for you." Li Yu stopped Li Xiuning, who was about to leave because of shyness.

Li Yu told her about the water truck and briefly explained the functions of the new water truck.

After hearing this, Li Xiuning didn't expect that Li Yu had designed two types, staring at Li Yu with his eyes and said, "I looked for you a few days ago, but in fact I was also about the severe drought in Guanzhong. I originally planned to wait for you to come back, and I would go to find you, but I didn't expect you to find a solution?"

After saying that, Li Xiuning blushed and said, "How many abilities do you have to hide from me?"

"Haha! After a period of my new house is built, I will let you see how the lights shine." Li Yu finished speaking, and the corners of his lips were curled in an arc.

I don’t know how surprised Li Xiuning would see the technology that has exceeded one thousand here after the modern villa was built. Li Yu was full of expectations.

Li Xiuning couldn't understand the electric lights described by Li Yu, and now she only cares about the water truck. Even if he doesn't come to find her today, if she knew that Li Yu was back, she would also go to find him.

The drought in the land in Guanzhong this year is very serious. The court is now anxious and is trying to solve the severe drought in Guanzhong. She didn't expect that this guy would solve the problem as soon as he came back, so how could he not be happy?

Li Xiuning immediately sent someone to call Li Er and Li Xueyi over and discuss the matter of the new water truck together.

"Hahaha~, I haven't seen you for a few more months." Li Xueyi walked in from outside with a smile, first bowed to Li Xiuning and Li Er, then turned around and looked at Li Yu and laughed.

Li Yu did not pay attention to Li Xueyi's words, but directly talked about the important matter.

"Actually, that's the case. Today I heard from tenants that irrigating the fields is very difficult, so I personally designed two types of water trucks, so you can take a look."

When Li Er heard Li Yu say that he designed two types of water trucks, he laughed excitedly and said, "That's great! Now everyone is anxious to get angry about the severe drought in Guanzhong this year. He didn't expect that you would solve the problem as soon as you came back."

Li Er now has a blind belief in Li Yu, and he feels that Li Yu has a complete solution to the problem of this severe drought in Guanzhong.

"Okay, don't be excited. Look at the sketch of the water truck. After reading it, you will talk about whether it can solve the problem of severe drought in Guanzhong." Li Yu said, then took out the drawings of the water truck and the molding drawings and spread them on the table.

The three of them gathered around and looked at the high-rotor truck, water-turn overturning sketches and molding drawings on the table.

These waterwheels were used in later generations in the 1950s and 1960s, but they only needed to use more gears.

"Why is the water truck you designed so strange? Can you explain it to us?" Li Xiuning asked hurriedly after reading it, but did not understand the function of the water truck.

Li Er and Li Xueyi also didn't understand very well. They looked up at Li Yu.

Li Yu nodded and said, "Okay! I will tell you the principles of these two types of waterwheels, and you will understand."

Li Yu pointed to the sketch on the table and said, "I will first talk about the principle of turning and turning over. The water turns and turning over. When the water rushes, the lower wheel will move, and then drive the vertical wheel that is intersected with the upper side wheel. Using the principle of gear connection, the overturn placed in the ditch on the side can be driven, and the water in the river can be transported to the shore.

The biggest advantage of water turning and turning is that it saves effort, because it uses the power of nature, human and animal power can be used with each other. This kind of water truck can irrigate day and night, and the convenience is also there, so people can step on the overturn..."

The principle of a high-rotor truck is to use hydraulic power to push the rotor with a water tube. If the upper wheel is rotated by human trampling or animal power, it can drive the tube cable. The tube cable runs downwards, so the water tube is immersed in water and fills upwards, and then flips upwards with the lower wheel and transports it to the upper wheel along the trough, forming water-covered irrigation...

If the river bank is too high or the water is deep or the fields are too far away from the water source, you can use this high-rotor truck. If the river bank is too far from the water surface or the fields are on the mountain, you can add a middle wheel between the upper and lower wheels….”

“…”

After Li Yu explained the basic principles of the two types of water trucks, he looked at the three people

The three of them had their eyes wide open, and they looked at Li Yu in surprise.

After being surprised, Li Xiuning looked at the drawings again. After looking at it for a while, he finally understood the principle of the water truck and said excitedly: "What a clever water truck. I have seen that kind of water truck. The design is too complicated. Your high-rotary truck is simple in design and has a large water output. It can also be driven by human power. It is unheard of for water trucks driven by animals. It can be raised to a high place without human power. There is also no manpower in this water truck. Just gather the water from the upstream. It is more sophisticated than the previous water truck. Not only that, these two water trucks are designed to be simple and easy to manufacture! Like the new plow, it is also a great invention!"

Li Yu heard Li Xiuning talk about the function of the water truck very well, which made him more satisfied. It seems that after a period of modern education, Li Xiuning has already understood a lot of physics knowledge.

Li Yu saw Li Xiuning's excited appearance and smiled on his face.

What is so strange about this kind of primitive application of hydraulic power? Not to mention the electric water pumps in later generations, but the water pumps used in the space are now driven by internal combustion engines, and the steam engine water pumps are now eliminated.

(First update. Please vote, please bookmark.)
Chapter completed!