The door suddenly opened, and Yang Xiaotao walked in from the outside. Wangcai was wagging his tail and sticking out his tongue at Lou Xiao'e.

Lou Xiao'e's face froze, and then she realized that this was a courtyard house, not a steel rolling mill, so she forced herself to say, "Whoever said bad things, I am telling the truth."

"If you don't want to come back to cook, just say so. I'm easy to get rid of, and I just need a simple meal!"

Lou Xiao'e sat there with her legs crossed, as if I was right.

"You can't just eat a simple meal. I need to find two pieces of steel to grind your teeth. This will save you sharp teeth and a sharp mouth!"

Yang Xiaotao took off his coat and there was nothing he couldn't say to Lou Xiao'e.

Ran Qiuye stepped forward to help hang up the coat, and winked at the opportunity, "Please stop saying a few words, I don't know how to give in!"

Ran Qiuye was advising from the side, and Yang Xiaotao shrugged, "You are right, you have to give in, who wants her to be small!"

Lou Xiao'e felt uncomfortable listening to the sidelines, "What's wrong? Humph!"

"Duanwu, don't be like your father. His heart is made of iron and he has no human touch."

As he said this, he picked up Dragon Boat Festival and touched his little hands to prevent him from looking for Yang Xiaotao.

"What did you say?"

Yang Xiaotao suddenly turned around and asked with a frown. Ran Qiuye was startled and was about to explain.

"What was the last sentence just now?"

Lou Xiao'e was stunned for a moment, then looked at Yang Xiaotao's serious look and spoke carefully.

"Say your heart is made of iron!"

"Heart.Iron!"

Suddenly, Yang Xiaotao thought of something, picked up his backpack and rushed to the study.

In the room, Ran Qiuye and Lou Xiao'e looked at each other, wondering what was going on.

…

"Ding, congratulations to the host, you successfully designed the electric pressure cooker, and the evaluation grade is passing!"

"Ding, congratulations to the host, you got 300 credits."

At twelve o'clock in the middle of the night, everyone in the room had gone to sleep. Yang Xiaotao rubbed his eyes and looked at the design drawings that had been revised several times. A familiar voice sounded in his mind. He finally relaxed and leaned on his back.

There was no system sound during the day. After Lou Xiao'e's unintentional reminder, the reason was finally found.

Alloys in this era are precious metals, especially when domestic metallurgy has not yet matured. Therefore, in the original design of the electric pressure cooker, the inner tank was made of alloy materials.

Yang Xiaotao considered reality, so he used ordinary steel at the beginning. Anyway, as long as the thickness was high enough to ensure safety, it would be fine.

But he ignored that resistance heating is different from thermal heating. It requires better thermal conductivity and has more stringent requirements on materials.

Therefore, the design drawings using ordinary materials were not recognized by the system. Now, after changing the material to aluminum, the good thermal conductivity immediately made the system successful.

However, the evaluation given by the system is also the lowest, which can only be regarded as a success in design.

Compared with the electric pressure cooker drawing provided by the system, it is simply a simplified version.

The biggest flaw is that there is no protection device, it cannot cut off power at high temperatures, it cannot cut off power at high voltage, it cannot cut off power by dry burning, and there may even be leakage.

In addition, there is also the issue of electricity utilization. If it is finally found that electricity consumption is better than coal, then it is not as good as coal.

And because of the existence of the inner and outer pots, the electric pressure cooker is much larger than the Youyi brand pressure cooker.

All these factors make this design drawing have a very low rating.

Even just passed.

But what must be admitted is that this design drawing has really come true. Even if the electric pressure cooker has some problems, the heating problem can be regarded as solving the fuel problem.

"It's an explanation!"

Stretching, Yang Xiaotao put up the design drawings, then walked to the toilet. After draining the water, he returned to the house and covered Little Dragon Boat Festival with a quilt. Then he turned off the light and went to bed, lying on the warm quilt with his arms around him.

The daughter-in-law wants to sleep in a comfortable position.

Less than ten minutes after I closed my eyes, I heard Wangcai's low roar in a daze, and then I felt Xiaowei flying into the house.

"Xiaowei, what's wrong?"

"Boohoo!"

Xiaowei's voice came from the bottom of my heart, and she immediately put on her coat and got up.

Come to the window and look out.

I saw a blurry figure moving cautiously towards the backyard, making a soft voice, and specifically looking at Wangcai.

"Mr. Jia Zhang? Is this old witch trying to do something wrong again?"

Yang Xiaotao recognized who it was at a glance. At this point, why did Jia Zhang run to the backyard? The toilet was not in the backyard.

Feeling a little curious, I asked Wangcai to leave it alone and just asked Xiaowei to follow him and take a look.

backyard.

Mrs. Jia Zhang walked cautiously, looking around from time to time, for fear that someone would suddenly jump out.

These past few days, life at home has been really difficult.

A meal of only one and a half steamed buns left me feeling full, not even full.

I told Qin Huairu, but it was useless.

Qin Huairu is the only one making money in the family, and the food supply is only so much, and she doesn't want to go back to the countryside.

Of course, I won’t have enough to eat when I go back to the countryside.

These days, everyone in the Jia family has lost several pounds from top to bottom.

It's okay for children. They are children to begin with, and they are still two losers. It doesn't matter if they eat less.

But when has she, an adult, ever suffered this crime?

Ever since I followed Lao Jia, I had never lived like this. Even if their son was paralyzed and lying in bed, their family would still order something from Sha Zhu or Yi Zhonghai every now and then.

But now, where is Si Zhu? Where is Yi Zhonghai?

There is no one in this hospital to help them, even the hospital-wide meetings that used to be held frequently are gone, and even if they come, no one pays attention to them.

This caused the Jia family's life to plummet.

Especially Qin Huairu's thin face changed color.

Qin Huairu could bear it, but she couldn't.

But everyone else in the courtyard was on guard against her, leaving her with nowhere to display her special skills.

I had no choice but to target the deaf old lady.

Back then, a lot of gold was dug out here.

If I miss a piece and she picks it up, I can get a lot of money in exchange for it at Pigeon Market.

She has been thinking about trying her luck here for the past few days, but unfortunately she has never made up her mind.

Moreover, Yang Xiaotao from the Intermediate Courtyard looks like he has money to burn. He stays up late at night and turns on the lights, wasting electricity.

After finally waiting for the Yang family to turn off the lights, she waited for a while and saw that Qin Huairu and others were asleep, and then she made up her mind and took action.

Carefully go out and run quickly to the backyard.

After walking two more steps, Mrs. Jia Zhang looked up at the dilapidated house of the deaf old lady. Under the ruins, there was a pile of swaying heads.

After making sure, he stepped forward, looked at the head on the ground, took out a small shovel from his pocket, and started digging.

Wow

Bada

The sound of digging continued to sound, even if it was suppressed deliberately, the sound was still heard.

Xiaowei watched from the side and waited for a while before returning to the room to report to Yang Xiaotao.

After hearing Xiaowei's narration, Yang Xiaotao was immediately amused by this idiot.

The deaf old lady confirmed that she had buried a lot of gold under the wall, but most of it fell into his pocket, and the rest was dug up. Not to mention the gold, not a single needle was left.

What Jia and Zhang did was purely whimsical, let’s just dream.

Yang Xiaotao ignored the idiot Jia Zhang and lay down again, hugging his wife and dreaming.

The next day, Ran Qiuye saw Yang Xiaotao with a smile on his face and asked him about last night while eating.

"The design drawing is done, but it will take some time to make it."

Yang Xiaotao drank millet porridge, opened an egg, and looked at the little Dragon Boat Festival on the side with his head tilted and not eating. Ran's mother was holding a bowl and feeding the chasing ones there. She directly carried the boy over and held a small piece of egg white.

Just put it in your mouth.

Suddenly, his father fed him a mouthful of egg white. Little Dragon Boat Festival stuck out his tongue, but his father sucked it in with his fingers, and then helplessly ate it into his stomach.

"Be good, eat the yolk when eating eggs."
To be continued...