ps Thank you to Xiaoyudi, strangers, and the return soul of the starting point, so much for today, don't wait.

……

Of course, Lu Yuan knows what it means to have two factories with basic industries in this era of lack of industry, not to mention the production of cement, a building material that is never in demand, and steel, which is inseparable from anything.

That simply means that there are two hens that lay golden eggs with a constant source of energy, and it is difficult to think of a lot of money!

Ordinary people can't do it if they don't care about it.

But Lu Yuan is different, he is a person who came from a few decades later, and knows the future, altogether. Give birth. The Party's forces will sweep across the land of China with an unstoppable trend and build a new China, and he is simply powerless to stop it, and he does not want to stop it.

Because although the new China they established, although there are many bad points and many shortcomings, they have been making progress and working hard, and finally let China climb out of the quagmire of the current people's misery and win the respect of the world again.

Most of the time, they're actually doing a good job!

As for Lu Yuan himself, he also knows his abilities, even if he can use the advantage of knowing history or be able to achieve a career, but he is not sure that he will be better than these people. Give birth. The party members did a better job.

What they did has been proven by history, and it is really hard to say what will happen if they forcibly rewrite history, maybe it will be better, but it is hard to guarantee that it will not be worse.

The Chinese people have suffered for countless years, and if we can end these sufferings as soon as possible, Lu Yuan is very willing.

Not to mention, if the trajectory of history deviates too much and too big, so big that he can't be born in a few decades, then he can't imagine what kind of impact it will have on him.

Therefore, do his best to bury as many evil little devils as possible, and let the suffering people suffer more and survive more, for him, this is the whole meaning of his existence in this era.

He didn't know before, but after passing through Nanjing, Lu Yuan had accurately found his position in this era.

So, let's kill the devil happily, of course, he will also try his best to leave a way back for himself.

What Lu Yuan thought, Lei Ming and the others didn't care at all.

After some discussion, Lei Ming said: "Captain Lu, since you have said so and behaved so sincerely, if we question your motives and intentions again, it will be a bit too much, but you have said so much, we still don't believe what you said, can it really be realized......

"In other words, what do you want me to do to prove that what I said really does and not lie to you, is that what you mean?" Lu Yuan said with a smile.

A few people smiled dryly and nodded, it was obvious that this was what they meant.

"Okay!"

Lu Yuan smiled and said, "Captain Lei still remembers what I told you last time, your mine improvement method, right?" I'll tell you now! ”

A few people listened attentively.

"Your mines use black powder and a hair pulling device, the power of black powder is not enough to cause the lethality of the mine, but the hair pulling device limits the use effect and scope of application of the mine, after all, you can't always let the soldiers hide and hide from the lead, right?" The road is far away.

Several people deeply believe that the improvement of landmines has also been carried out on the Eighth Road, but until now, no breakthrough has been made.

"Therefore, the improvement of mines is mainly carried out from two aspects, one is that the explosives used have been changed from black fire medicine to nitrocellulose starch, and the trigger device has been changed from pulling hair to pressing hair!" The road is far away.

Nitrified starch, hair pressure device?

Lei Ming and the others didn't understand it, but they still listened to it with relish, because this was a really feasible technology, not the various data that Pan Haodi had talked about at the beginning.

And Lu Yuan didn't say much, took out a pen and wrote directly on the paper.

Nitrogenated starch has now appeared, but there are still very few in China, although the power is not as good as many high explosives in later generations, but the power is really not small, even higher than ***, and the characteristics are extremely stable, low induction, must be detonated with ****, is an important explosive in this era, whether it is used in artillery grenades and mines, the effect is excellent.

The explosive power of nitrocellulose mainly depends on the nitrogen content in the explosive, the higher the nitrogen content, the stronger the power, and the detonation rate will also accelerate.

And the biggest reason for choosing this explosive is that it is easy to make, that is, it is mixed with 58.8% sulfuric acid and 38% nitric acid, and 3.2% water, and then put in corn flour that is carefully ground and filtered for impurities, stirring and nitrification, and the final precipitate is nitrogenated starch.

A lot of chemicals are very rare in China, but sulfuric acid and nitric acid are not difficult to buy at all, not to mention that in the future, whether it is iron ore refining or burning cement, the tail gas can also make sulfuric acid nitric acid, which can not only purify the tail gas, but also make sulfuric acid nitric acid, which is simply a lot of one stone.

Of course, although it is simple enough, it also has a certain degree of danger, and if you want to produce, you must also have a certain amount of experience, and the Eighth Route Army is now making explosives by themselves, although it is still in the stage of black powder, but it is undoubtedly much more experienced than Lu Yuan. ，

He knows this, but also because of the results of the information explosion decades later and because he is a special soldier, he has a little dabbling in the manufacture of various explosives, and he can, but he is not proficient.

"This is the formula, you take it back to the master of your explosives factory to take a look, experiment a few times, and it should be able to be made smoothly!" Lu Yuan handed over the list to Lei Ming.

"Zizi, it's actually corn flour as raw material, it's too luxurious!"

Lei Ming, Han Xiaolei and others sighed, the current food is very scarce, but in order to be able to make more powerful explosives, some corn, they are still willing to do it.

As for the hair pressure device, it is simpler, now there is a hair pulling technology instead of direct ignition, the rest is to install a spring, simply draw a hair drawing, hand it over to them, focus on the selection of springs must pay attention to, there is nothing special, go back and try a few more times, the mass production of the device, then the emergence of a batch of new mines, it is no longer a problem.

Later, if the steel plant starts smoothly, then the steel plant will cast its own mine shells and springs, plus these nitrified gunpowder, a steady stream of mines will be supplied to the battlefield everywhere, Lu Yuan is really looking forward to the little devil as soon as he goes out of the city or watchtower, and his legs tremble when he walks on the road for fear of accidentally stepping on the mine.

Decades later, when the invincible U.S. army attacked Vietnam, the mines in Vietnam were bombed and cried and howled, although the little devil is now strong, but compared to the U.S. army, it is far behind, he believes that these things will make the Japanese army deeply realize that the all-out invasion of China is one of the stupidest decisions they have made in history!