Zhang Sijiu said succinctly: "There is a problem with the scale of the model. These small stones, for the model, are too big. There will be no stone of this size in the real field, unless it is to open up wasteland. However, if you want to open up the wasteland, you can directly remove the sowing piece and use a roller ruler that is more suitable for plowing. And replace manpower with cattle or horses. ”

"The ripe land, the stones, have basically been cleared, especially the rice fields. The basic soil quality is very delicate. You just need to make a normal size, always jacked up by the stones, and the problem of causing the plow not to dig the pit will not happen. ”

"The second problem is that the seeds will get stuck and not come back, so there will be leaks. In this case, the true proportion should not be stuck. After all, it should be only wheat and rape that will be sown like this. Or some vegetable seeds. These seeds are not as large and less prone to getting stuck. If you are really scared, you can set a putter so that even if it gets stuck, you only need to push it once and the seeds will come loose. ”

After saying this, Zhang Sijiu smiled: "Your research reminds me of some medical devices. In fact, if you want to do it, you should try a larger ratio, so that even if you fail, it will be easier to find the actual problem. If you make a model, there is still no way to restore everything to equal scale, and there will be a lot of problems. ”

Yang Yuanding had no mind to discuss the future with Zhang Sijiu at all, and his mind was full of how to transform the seeder.

He waved his hand: "Got it, got it." I'm going to the blacksmith right now! ”

With that, he ran away.

The appearance of burning his ass made people wonder if he really encountered something urgent.

Zhang Sijiu watched his back disappear at the speed of a 100-meter sprint, and suddenly couldn't help but shake his head: Hey, people who are engaged in research and development are always like this!

Still, she understands the feelings.

After boiling the eggs, Zhang Sijiu went to find Xu.

Earlier today, Xu was a little surprised: "Sold out so early?" ”

Zhang Sijiu nodded: "There are not a few more." ”

"Business is so good, you can get a few more tomorrow." Xu said with a smile as he walked with his burden.

However, Zhang Sijiu shook his head: "It can't be more." ”

"Why?" Xu Shi turned his head to look at Zhang Sijiu in wonder, he really didn't understand why he didn't earn money when he was rich: "Aren't those students in the academy quite rich?" We don't sell it expensive—"

"Second aunt, there are so many people in the school, if I really sell everyone, then no one else will have any business to do." Zhang Sijiu avoided a pit on the road and explained softly: "Then at that time, others should hate me." I'm just a kid, and if they did, I wouldn't be able to beat them. ”

A group of adults have to deal with a small child, and there is a way.

Zhang Sijiu didn't want to cause public anger.

Xu was stunned.

She really didn't think about it. However, now that she already knows who the person behind Zhang Sijiu is behind the idea, she immediately laughed again: "I didn't expect Yang Sanlang to even understand this truth." If he goes into business, he will definitely make money! ”

Zhang Sijiu thought about Yang Yuanding's ecstatic selling, and nodded sincerely: He wants to do sales, and it is definitely the best.

Xu was a little envious: "If Xiao Song and Xiao Bai can be half as smart as someone else, I don't worry about them not having a good time in the future." ”

Zhang Sijiu comforted the Xu family: "Xiaosong Xiaobai is also very smart, and if he reads in the future, even if he can't catch up with Yuan Ding, he is definitely better than ordinary people." ”

This is a low-quality one, but reading is high. And it can really come out of the era of the noble son.

Reading is definitely the most beneficial thing.

Xu nodded thoughtfully: "I must work hard to earn money." ”

Then send Komatsu Kobai to study!

Zhang Sijiu laughed: "Yes, second aunt, let's work hard to make money together." ”

However, at noon, after Zhang Sijiu helped Xu finish selling meat, he did not go home, but went directly to the hospital.

Today is the day to learn.

Before Xu went back, he specially gave Zhang Sijiu five dollars and asked her to eat a bowl of noodles.

Zhang Sijiu accepted it with a smile, feeling a little warm in his heart - this is the concern from his family.

For five dollars, in fact, you can only eat a bowl of chicken noodle soup. The kind that doesn't even have a piece of meat.

However, Xu himself was reluctant to eat such a bowl of noodles.

If you change to Xu herself, at most, you will eat a bowl of coarse grain noodles for three yuan, and the real Yangchun noodles - except for a few drops of sesame oil, there is no oil at all, and you can only fill your stomach.

Zhang Sijiu cherishes this concern very much.

This represents the family.

With a family, there is a home.

She was finally no longer alone.

Zhang Sijiu entered the hospital in a very good mood, and then met a patient, and his whole leg was sent over.

Doctor Qi and Cheng Wanli didn't bother to say a word to Zhang Sijiu, so they hurriedly rushed over.

Zhang Sijiu also followed without hesitation.

The patient has passed out in a coma. The face is pale, the breathing and heart rate are not fast, and the typical excessive blood loss.

However, the patient did not take any measures to stop the bleeding and allowed the open wound to continue to bleed.

Zhang Sijiu immediately pulled Cheng Wanli's sleeve: "Lao Cheng, Lao Cheng, you use a strip of cloth on top of his wound and tie it tightly." ”

Cheng Wanli did so without hesitation.

Dr. Qi was busy giving the patient an injection, and he couldn't care about these actions of Cheng Wanli and Zhang Sijiu at this time.

The person who brought the patient was also dyed red at this time, and sat there paralyzed, snorting and wheezing.

Zhang Sijiu went over and asked, "How did the patient get hurt?" ”

"Hit the leg. The wheels pressed over his legs. The other party wiped his face, and his hands were trembling: "He suddenly turned out, and the horse was frightened." ”

As soon as Zhang Sijiu heard that it was a crushing injury, he turned his head to look at the bloody wound, and suddenly his heart sank: crushing injury, subcutaneous tissue damage is the most severe, and it is very difficult for debridement. Later suturing is even more difficult.

Most critically, damage to the bones.

Fractures caused by crushing are prone to bone fragments. Once it is not cleaned up, the infection is not to be talked about. Just talking about bone connections is a big problem.

Combined with the current situation of excessive blood loss in patients, the most appropriate means are...... Amputation.

So the question is, in this day and age, if you amputate your limbs, can you live?

Zhang Sijiu turned around and returned to Cheng Wanli's side: "How to treat it?" ”

Cheng Wanli had already finished observing the wound.

He didn't look at Zhang Sijiu, and then looked at Doctor Qi: "Senior brother, what do you see?" ”

Doctor Qi shook his head: "I'm afraid it's difficult." The leg became like this, and it couldn't be taken back. ”

Zhang Sijiu raised his eyebrows: Do you have the same opinion? And what about the treatment options??

------Off topic------

See you tomorrow~

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