With a plan in his heart, Zhang Ran rushed back to the office and immediately picked up the pen and began to write pinyin.

In order to facilitate understanding, he even carefully wrote out the rules of pinyin directly, and wrote some examples, preparing to wait for the evening when everyone was convened for a meeting, the implementation of pinyin to assist in the recognition of words to be implemented.

The reason why I didn't look for Deng Ying alone, first taught Deng Ying and then let Deng Ying teach everyone directly, was purely to avoid suspicion.

If his own problems are not implemented for a day, Zhang Ran will not dare to develop any feelings for a day, so as not to implicate others.

What's more, he still has a little hope for wearing it back after all, and he still has a little bit of nostalgia for the Kehua that is about to be started.

Tonight's small stove was not as hearty as yesterday, and it was a little more than ordinary warriors in terms of the amount of food.

Kang Ting was unceremoniously coming to eat Xiaozao today, and he was going to sit next to Deng Ying with a dead face, ignoring everyone's funny laughter and Deng Fangqing's face that was about to drip water.

And when eating, this guy kept persuading Deng Ying to eat this and that, which made Deng Ying a little embarrassed and couldn't swallow, and he couldn't sit still.

In a few decades, this guy can't break the face with a gun, he is definitely a saint-like character, and there are too many girlfriends to count, where can he be in his early thirties and still beat a bachelor like now?

Zhang Ran couldn't help but feel sorry for Kang Ting that he was born in the wrong era, and in order to resolve the embarrassment, and Deng Fang, who was afraid that he was already on the verge of breaking out, directly lifted the table, coughed twice and asked Deng Fang: "Deng Gong, sulfuric acid and silver, don't they react?" ”

"Of course there is no reaction, at most, the purity of the silver is not enough, and the sulfuric acid dissolves some impurities in the silver!"

Speaking of professional issues, Deng Fang's face only looked a little better, and he asked with a muffled snort: "You don't even understand this, do you?" ”

"I just want to test you!"

Zhang Ran coughed dryly twice, so that he would not tell Deng Fang that he was stupid to use silver dollars and sulfuric acid to experiment with the primer this afternoon, but he got nothing and wasted half a day's effort.

Otherwise, with Deng Fang's character, it would be strange if he didn't squeeze himself to death.

Diverting the topic, Zhang Rancai continued: "Dissolve silver with nitric acid, and the silver nitrate generated after the reaction should be enough for the primer of the bullet propellant, right?" ”

"Silver sulfate is not very stable and prone to explosions, don't mess around with your two knives, otherwise I'm afraid you will die and I don't know how you died!"

Speaking of this topic, Deng Fang reminded with a serious expression.

"Deng Gong, you look down on people a little bit - who are the two knives?"

Zhang Ran said stiffly, but seeing everyone's expressions looking at him, he didn't want to admit it.

If a layman wants to be an insider, it's okay for a short time, but after a long time, he can't make up for this flaw.

But this finally let him know what went wrong with his afternoon experiment - it was purely his own confusion of sulfuric acid with nitric acid!

Although he was despised by Deng Fang, Zhang Ran's harvest was still great.

As long as the trial production of sulfuric acid is successful, it will be much easier to prepare nitric acid with sulfuric acid!

Knowing the trial production method of silver nitrate, it is a matter of minutes to develop a primer!

With a primer, reloading bullets, solving the problem of insufficient ammunition, or even directly making self-made bullets, it is only a matter of time to solve the problem of self-use of bullets and even supply the main force of the Eighth Route Army!

After all, in history, the problem of bullets in various detachments has not been solved for a long time, and the problem of primer propellant is still secondary, mainly due to the shortage of copper.

On the detachment's side, there is a copper mine, and it is now ready to smelt copper!

Although the reserves of this copper mine are not large and the taste is not high enough, it is completely the existence of chicken ribs.

But it is only used to solve the problem of the supply of guns and ammunition around the base area, Zhang Ran believes that even if it is in the Heji Rib Copper Mine, it is definitely enough!

Thinking of this, Zhang Ran couldn't help but flutter.

Looking forward to the bullets with the initials of their names shot into the hearts of the little devils, sending these beasts back to their hometowns one by one, I almost laughed out loud in my heart.

"Captain, captain!"

Wang Lao next to him stabbed Zhang Ran and said with a smile: "Lu Yan is talking to you-what do you think about so happy?" ”

"Thinking that the development of our detachment is getting better and better, all of you and I who are doing it have made great contributions, and I am happy for a while, and I can't help it!"

Zhang Ran laughed, and then asked Lu Yan what was the matter.

"I've confirmed the general personnel of the health team, and I asked them to come to the detachment tomorrow to report and receive training in battlefield first aid, do you think it's feasible?"

Lu Yan said with a smile.

"No problem, if you don't say it, I'm going to ask you!" Zhang Ran said.

In a dozen or twenty days at most, the recruits are almost trained and the grenade mines are fully prepared, so they will immediately send troops to Cangshui, and the health team will have to go with the team at that time.

If we don't start training the health team now, I'm afraid we'll be blind.

"I also sent someone to pick back more than a dozen catties of castor, and when it is dried, you can squeeze the oil!"

Wang Changtian also said: "I won't be ready to pick too much, after all, the castor beans are not really ripe, and the oil squeezed out is not much, captain, you will use it first, and after the castor beans are fully ripe, I will organize a large number of picking......

"Okay, anyway, castor oil is currently used as gun oil, or not much, the engine oil used by the machine in the second workshop is still there for the time being, don't worry!"

Zhang Ran nodded, he was now more and more satisfied with the two deputies Lu Yan and Wang Changtian, who took care of all aspects, and he didn't need to worry about it at all.

After eating, someone from the kitchen came to clean up the dishes and chopsticks, and Zhang Ran was going to take out the pinyin textbook written in the afternoon to explain it to everyone.

"Deputy Company Commander Kang, come out with me!"

Deng Fang spoke before Zhang Ran, drank murderously to Kang Ting, and then went out directly, and Kang Ting followed out.

After a while, Deng Fang's fierce scolding voice was faintly heard outside the door.

Everyone who had been holding back for a long time laughed, and Deng Ying said with some twists: "I heard the soldiers tell the deeds of Deputy Company Commander Kang, and I know that he is a good person, and he is jealous and hateful, but it's a pity that he is really not the type I like......"

"Then I don't know what type you like, Miss Deng?"

Wang Lao asked with a smile, glancing at Zhang Ran from time to time.

Deng Ying blushed and squirmed and refused to answer.

"Company Commander Wang, pay attention to your own identity!"

Zhang Ran kicked Wang Lao angrily and said: "You are the dignified company commander of the Jindong Detachment of my Eighth Route Army, not a ruffian, what kind of system do you become by making such a flirt with a girl like Deng Ying - you are violating organizational discipline, do you know!" ”

Wang Laogui was scolded by such a nose not a nose and a face is not a face, his old face was flushed, and he had a belly of MMP, and he said in his heart, Captain, I will tease Deng Ying and make a joke with her, you won't deduct the big hat of organizational principles, right?

"Alright, let's get down to business!"

Zhang Ran didn't give Wang Laogui an excuse, and finally gave himself a chance to go around, coughing dryly: "I passed by the classroom in the afternoon, and saw Teacher Deng teaching the children, and found some problems, that is, our writing is too complicated, if you don't have a little foundation, it is difficult to make much progress in a short period of time......"

This remark won the approval of everyone, whether it is Wang Changtian, who can write well, or Deng Ying, who has a family background, and people like Wang Lao Cheng Dongguo Lu Yan who did not begin to read until he participated in a literacy class, let alone a person.

Moreover, people like Wang Lao turned Cheng Dongguo Lu Yan, when he didn't learn words before, he didn't think there was anything, but since he knew some words and needed to use some words in his work, he found that he knew too few words and was too insufficient.

It's just that they have passed the best learning age, and it is even more difficult to learn to read and write in the traditional way of rote memorization.

There are some situations where you obviously worked hard at that time, and you feel that the words you remember firmly are completely forgotten in a blink of an eye, and you can't remember whether you are dead or alive, that happens from time to time.

They themselves were in a hurry, but there was nothing they could do.

"Brother Ran, have you thought of any good ways to assist everyone in learning and facilitate memorization?"

Deng Ying remembered the conversation between Zhang Ran and himself in the afternoon, and asked with shining eyes.

"Let's look at this, this is what I told you before, pinyin alphabet!"

Zhang Ran handed over the textbooks written in the afternoon to everyone for circulation, and at the same time hung the small blackboard that had been prepared on the wall, and wrote all the pinyin letters on the blackboard with the lime blocks he picked up as chalk, explaining to everyone: "This is originally the Arabic alphabet of the West, but I have made some changes here to make these letters more suitable for our pronunciation habits, don't ask anything first, read it to me first, a, b, c, d, b, p, m, f......"

After reading it, Zhang Ran wrote a few of the most accurate traditional Chinese characters he remembered on the blackboard, marked them with pinyin and taught everyone to read them again, and then asked with a smile: "Have you found any rules between these pinyin and words?" ”

Lu Yan, Wang Laogui and the others obviously felt the benefits of pinyin, but they couldn't express what it was, and they scratched their ears and cheeks anxiously.

Deng Ying, who usually takes great pains to teach children to read and write and illiteracy for the villagers, does not know how many methods have been used to achieve poor results, and took the lead in grasping the most critical things, and said happily: "These pinyin combinations are just like us talking, but each syllable is concretized......

"That's right!"

Zhang Ran slapped the table and praised: "Teacher Deng, you are smart, if we use this method to promote literacy, even if the words can't be written, but as long as you remember pinyin, you can use pinyin to replace the words that can't be written......"