But the second uncle's family will build a new house in the second half of the year, and they don't know when their house will be built. But he is also satisfied, after all, the house was built well at the beginning, although it is a bit old now, it is still very well repaired.

"What did you say? Your second uncle's family is going to build a house after the autumn harvest?" Wang Cuifang was shocked by the news, and she dared not believe it. "How do they have the money to build a house? That lazy boy like Zhang Chengchuan must not be able to make money. , and his disease..." Wang Cuifang swallowed the remaining two words under the eyes of her son, and continued, "It seems that their husband and wife can't make money at first glance, but relying on your second uncle and his wife to make money to build a new house?"

"Couldn't Cheng Yue pay for it? Cheng Yue's mother-in-law will agree? They have two sons in their family. How could they give them so much money to build a house?"

"It's impossible for Cheng Yue and his family to live in this house, and it's impossible to pay for it." Wang Cuifang couldn't believe it. She didn't believe that Zhang Chengchuan's family could earn money to build a new house.

Zhang Chengyan rubbed his forehead, what could he say seeing his mother like this?

My mother has always been jealous of the second room, especially his second aunt. The second uncle is the accountant of the brigade, and his mother has always felt that his father is not a bit dignified as the captain of the brigade, so she has always had a deep prejudice against the second room.

Later Cheng Yue went to serve in the army, and Idiom also married into the town, his mother became even more jealous of Second Aunt. As the eldest sister-in-law, she can't compare to her second aunt who is the sister-in-law in every way. This is her knot in her heart.

But Zhang Chengyan felt that this was because his mother was thinking too much. Compared with other people, her life was already very good. What else was she dissatisfied with?

Zhang Chengyan didn't bother to continue talking. He patted his mother on the shoulder and went out to help.

To build a biogas digester, choose a dry place without water leakage. The uncle's house does have a place, and they chose a place in the yard to start digging.

Zhang Chengchuan guided everyone to dig the pit, and he himself drew the design drawing of the biogas digester, and built it step by step according to the design drawing.

He bought the cement in 20 years, and the bricks from the brick kiln factory in the brigade. Of course, the money was paid by the uncle's family. Of course, the uncle's family lived with his grandparents, so Zhang Chengchuan's family also paid part of the money.

It took a day, and the cousins ​​dug the hole, and then started to build the hole. The brothers didn't know how to build a biogas digester, but they believed in Zhang Chengchuan, so they did what he said.

It took two days for the bricks to be laid, coated with cement and allowed to dry naturally. After that, the cover is added to seal the biogas digester tightly.

Of course, the biogas digester also has a hole for the biogas and a hole for discharging the material. After the biogas digester was built, they put the material in and connected it to the biogas digester along with the toilet.

Zhang Chengchuan and his team not only built a biogas digester, but also built toilets. A not-so-small toilet, and Zhang Chengchuan specially installed a toilet instead of a squatting toilet.

The toilet was also bought by Zhang Chengchuan from an online shopping platform that has been around for 20 years. Because there are elderly people in the family, he installed a toilet instead of a squatting toilet.

After the toilets and digesters are built, wait for the biogas to form.

Originally, Zhang Chengchuan planned to start a fire with biogas, but there was no biogas furnace. Therefore, Zhang Chengchuan could only install circuits and electric lights, and prepare to let the biogas light the lights.

Grandparents and uncles have no objections. It is good to be able to turn on the electric lights. They are still used to cooking with earthen stoves.

The movement of Uncle Zhang's house has attracted a lot of attention. This time, Ye Yun really affirmed that there must be a time traveler in the Zhang family.

After all, she had never heard of such a thing as a biogas digester in the 1960s. But she didn't have the extra energy to confirm who was the traverser, and she still couldn't conquer Lin Jiancheng's favorability to 60%.

Moreover, Ye Yun heard that Lin Jiancheng was going back to the city, and his family finally managed to bring Lin Jiancheng back.

Ye Yun gritted his teeth, why is Lin Jiancheng so difficult to attack? She obviously provided her with a lot of points, why is her favorability stuck below 60%?

Lin Jiancheng is going back to the city, what should she do? She broke up with Zhou Jianye, Zhou Jianye was married, and his wife Lin Heping had already lived in Zhou's house.

The Zhou family did not arrange a wedding banquet for Zhou Jianye and Lin Heping, not even one or two tables of the wedding banquet. Lin Heping brought her own luggage and moved into the Zhou family, which meant that they were married.

Of course, under Zhang Chengchuan's reminder, Zhou Jianye got the certificate with Lin Heping, and after receiving the marriage certificate, they are legally recognized couples.

Zhou Jianye is already married, and he only has 20% favorable impression towards her, so it is impossible for Ye Yun to look for him back.

But besides Zhou Jianye and Lin Jiancheng, who else could she catch? Song Yu? Or Zhang Lian?

Zhang Lian is going back to the city too. I heard that the formalities have been completed and he can go back to the city as long as the school is on holiday. And Song Yu? Ye Yun also heard that Song Yu's family conditions are good, but the man's favorability towards her is negative.

Ye Yun didn't dare to challenge a man whose favorability for him was negative, what if he said it? She is also someone who is very afraid of GWH.

Ye Yun didn't have time to confirm who the traverser was, so she seized the time to attack Lin Jiancheng, hoping that his favorability could increase as soon as possible, and then bring her back to the city.

And other people in the village were very curious about what Zhang Chengchuan was tossing about. The biogas digester had just been built and there must be no way to generate biogas so quickly, so everyone wondered what he was doing.

And Zhang Chengchuan didn't care so much. After the biogas digester was built, he improved the design drawings, and of course added circuit diagrams, some theoretical knowledge of biogas lamps and biogas stoves.

After tidying up the things, Zhang Chengchuan put them away, and waited until the biogas lamp was really usable after the biogas was generated.

Then Zhang Chengchuan devoted himself to the research of tractors. How should tractors be improved? How should tractors be produced?

"I think oil is also very important." Chen Xiayue said when Zhang Chengchuan was researching tractors. Perhaps there are fewer mechanical vehicles produced now because of oil?

What if there is too much oil?

"Do you want to study oil detectors? I think this is more urgent than tractors. If the research is done, we can have protection. Even if GWH wants to trouble us, it's useless." Chen Xiayue said.

Zhang Chengchuan's eyes lit up after being reminded, he picked up his daughter-in-law, hugged her and kissed her, and said happily, "Daughter-in-law, why are you so smart?"

"What you said makes sense. If it's an oil detector, then it must be better than a tractor." Zhang Chengchuan said happily, "I'm going to study it right now, and I plan to ask Ans about it. ask."

Chen Xiayue looked at Zhang Chengchuan, who was full of vigor, and laughed too. In any case, she was also very happy that Zhang Chengchuan was so happy.

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