Chapter Ninety-Seven: Loudspeaker Broadcasting Blocks the Way of Retreat

Zhang Zhimu and Li Yunhe came to Yangchang's laboratory, and Yangchang led a group of people who were worried here.

Seeing Yangchang's red eyes one by one, Zhang Zhimu was very distressed. He knew that the people on their side of Yangchang were not working, they were simply working hard. A lot of the time, they go into the lab and don't come out for days. And they're not like one or two people, they're like this as a whole team. Zhang Zhimu reminded Yangchang several times that it would not work for a long time, but Yangchang promised very well every time, but the result was very little.

Seeing Zhang Zhimu and Li Yunhe coming in, Yangchang gave them a seat, and asked the colleagues in the room to rest first.

Seeing that Yangchang's mood was not high, Zhang Zhimu asked with a smile: "It seems that you have encountered difficulties!" It's normal, you do things that no one has done before, and everything is innovative. You may not know that what you are doing now will have a huge impact on the whole of humanity. Now that you have come to this path, it is your daily work to solve difficulties. ”

Yang Chang hung his head and said, "I understand the truth, but sometimes it's too difficult." The scary thing is that we often feel that everything is right, but the result is not right. You're at a loss. ”

"Tell me what happened to you. Maybe I'll help you out. Zhang Zhimu said.

Yang Chang pointed to several horn-shaped horns in the room and said, "Mr. Zhang, you saw it." It was a horn we made, but we plugged in the amplifier and the microphone, and before we could speak, we started screaming at a piercing sound. We tried our best, but we couldn't. ”

Zhang Zhimu laughed when he heard it, such things often happened in his previous life. Sometimes, installing a conference sound system in a conference room is the most common problem. It looks simple, but if you don't get it right, it will take you a lot of time.

Seeing Zhang Zhimu laughing, without waiting for him to speak, Yang Chang stood up and asked, "Mr. Zhang, don't laugh." Do you have a solution to this problem? ”

Zhang Zhimu said: "In this way, you take all the horns to the windowsill, open the windows, and the horns are facing outward." You guys try again. ”

Yang Chang immediately called his colleagues, and according to Zhang Zhimu's statement, he tried it, and sure enough, the howling was gone, and he spoke with a microphone, and the sound was amplified from the speaker and sent out.

Zhang Zhimu turned up the volume in the past, tried "Hey, Hey", and felt okay, so he sang a song "Small Town Story" into the microphone.

Zhang Zhimu's singing voice was released through these trumpets. There are many people outside the window, who have never heard such a loud voice, and it is still singing. Outside the window it was filled with people in a moment. As soon as Zhang Zhimu finished singing, the people outside shouted, "Come again!" Again! ”。

Seeing that the people outside were very interested, Zhang Zhimu said into the microphone: "Today is a big day. Our front-line soldiers are winning battles, and our colleagues in the rear are also constantly creating miracles. Today you are witnesses to this miracle. I'm happy today, and I'll sing you the song "See the Smoke Rise Again" at the end. ”

After Zhang Zhimu finished singing, there were more people outside. But Zhang Zhimu knew that he couldn't sing anymore. Otherwise, the conversation will be endless.

Regardless of the sound of "sing one more" outside, Zhang Zhimu asked Yangchang to close the window.

The room was quiet, and Zhang Zhimu said, "Yangchang, congratulations on the success of your amplifier and speaker." I also see that your eyes are red, I see that you all go back and rest first, your body is important. ”

Yang Chang said: "Mr. Zhang, tell us what the truth is, otherwise we won't be able to sleep when we go back." ”

"Yes, yes! Mr. Zhang. The brothers of Yangchang also said nonsense.

"Good! I'll tell you what's going on. Because your amplifier gains too much, the sound coming out of the microphone is amplified, and when it comes out of the speaker and into the microphone, it forms a positive feedback, so there is oscillation, and therefore whistling. You see, we'll just blow the bell out. To solve this problem, you can reduce the amplification gain and keep the microphone away from the speaker. In fact, in some cases, you can solve the problem by turning the direction of the speaker or the direction of the microphone. Sometimes, though, it doesn't work that way. Technically, it is possible to change the frequency of the output voice to avoid positive feedback, but in this case, it is easy to cause distortion. We can also use a two-microphone approach, so that one microphone is facing the speaker and the other is facing the opposite direction, and they want to answer each other, so that the feedback signals cancel each other out. This usage is especially suitable for places like the Cultural Palace, which can not only be used to howl, but also can cancel out the loud noise when there are many people, and it does not affect the sound of speaking into the microphone. ”

Yang Chang patted his head and said, "We people, just adjust it in this room, change it!" It's all going crazy. ”

Zhang Zhimu said: "Yangchang, it's time to give your brothers a vacation and rest. After that's done, you have to build such an amplification system for both the Palace of Culture and our school playground. It is also necessary to come up with a higher-power PA system that can be used on the battlefield. We can conduct psychological warfare with megaphones. And your paper cone horn still needs to be done, and this thing will enter thousands of households in the future. ”

Yang Chang said: "Good! Don't worry, I'll arrange someone to do these things. It's great that we have tubes, and by this time our ammeters and voltmeters have been able to measure very small signals. That frequency meter also came into use. With this stuff, it's so easy to debug the kind of audio oscillator you brought with you last time. We're going to be rebuilding all the telegraphs with new audio oscillators. After the renovation is completed, it will be much more convenient to receive and receive telegrams. Also, we developed that welding machine, but we wasted a lot of tubes. Now that we've solved the refrigeration problem, it's no problem. Lu Wenchen They are very satisfied with it and are trying it out. But I've got people to specialize in the kind of high-current tubes they use. That will last a little longer. ”

Zhang Zhimu said: "You must hurry up with the electric welding machine. Our shipbuilding work is about to begin, Lu Wenchen is training a large number of welders, and soon a large number of electric welding machines will be used. ”

Yang Chang said: "I will take care of this matter myself." ”

"You must not get bogged down in these specific matters. You have to do as much work as you can. You have more important things to do now. Zhang Zhimu said.

Yang Chang asked, "Isn't it important what we do?" ”

Zhang Zhimu smiled and said, "What you are doing now is the most basic. Remember what I told you, do you want to do wireless telephony and wireless telegraphy? What you're doing now is laying the groundwork for those guys. I didn't expect you to progress so quickly, though. Now that we have what it takes to do radio, that's your point. As soon as those are done, the whole world will change. ”

Zhang Zhimu's words made Yangchang's face flush with excitement, "Mr. Zhang, since I followed you on this road, my brothers and I both know that our lives are worth living." ”

Zhang Zhimu said: "Don't get excited. There's a lot to come. Take a break, and I'll give you a lecture. However, your production, outside construction and home research personnel are all well arranged. I think you still need to find more young people, and you have to train them now. I still say that how many people are now will not be enough in the future. ”

Yang Chang said: "Yes, Mr. Zhang. There is no need for the future, we just don't have enough people now. When you said that, we didn't believe it. It's a little late to know. ”

Leaving Yangchang here, Zhang Zhimu said to Li Yunhe: "After Lu Qi helped Liu Bensheng and them, he has to withdraw and let him engage in mechanical design on your side." I forgot to ask, how is their hemp spinning equipment? ”

"After finishing the textile machine, it is a simple matter to build a hemp textile machine, and they have already finished it. However, there has been a war for a while, and there is no hemp to spin, and the machine has been stopped. However, Mr. Lu has already arranged for someone to purchase hemp. Li Yunhe replied, and said: "Our hemp mill also needs a lot of people. Several yards have to be expanded, and a lot of workers are needed. I see that this time the captives have returned, and I am going to pick a few thousand young ones. Arrange people to train first, and when they are employed, they can be used directly. ”

Zhang Zhimu said: "Don't be careful, pick out thousands of seventeen or eighteen-year-olds at once, and train them for a year and a half to get on the job." With a master, it will soon be able to be used by people. The people you need here will all be engaged in technology in the future, so people want your side to choose first. ”

"Okay!" Li Yunhe replied, and thought of something else in his mind, he asked: "Mr. Zhang, we have already beaten down Taiyuan." When are we going to move to Taiyuan? ”

"What are we moving to Taiyuan for? We went there, and the emperor knew about it, and he didn't think we were going to rebel? Therefore, we are resolutely not allowed to go to Taiyuan. However, I am also optimistic about where to go in Taiyuan, and I want to build a college there in the future. Those palaces and the like are renovated to be a good college campus. Zhang Zhimu said.

When Zhang Zhimu returned to the office, Xiao Hongyu was waiting here.

Yang Yulin said to Zhang Zhimu: "Xiao Hongyu is anxious waiting for you, and I don't know how distressed people are?" ”

Zhang Zhimu heard a little sour taste and said, "With you by your side, can Xiao Hongyu still be anxious?" ”

Xiao Hongyu is not good at stubble, "Oops! The two of you sing and harmonize very tacitly. We outsiders can't speak, I don't know if we should leave or stay? ”

Zhang Zhimu laughed and said, "Haha! You can't talk about it, you can't talk about it, if you can, how much you have to say! ”

"Huh! You see, it's still a family to a family. I really don't dare to speak! Little Hongyu said with a smile and trembling branches.

followed Zhang Zhimu to the back room, Xiao Hongyu sat down, and said, "Mr. Zhang, I came to tell you this time that we want to go to the front line to comfort our front-line soldiers." I hope you can help us arrange it. ”

"This is a good thing, I thank you on behalf of the soldiers on the front line. However, this matter may have to wait for some days, because the front line is now in chaos, and the front has not been stable. Every day is changing, you are in the past, and the front line has to arrange for people to protect your safety. Let's talk about it in a few days! Zhang Zhimu said.

Little Hongyu nodded and said, "Oh! That's right. Mr. Zhang, when will we be able to finish the battle? ”

Zhang Zhimu said: "It's almost there! We don't want too many people to die, so we control the course of the war all the time. ”

"Mr. Zhang is really a peerless hero! The course of the war was even controlled. I don't know if I can ask, after fighting Shanxi, where is Mr. Zhang's next goal? Xiao Hongyu was sincerely amazed and asked again.

Zhang Zhimu said: "I want Shanxi to cultivate vitality first, and we are not able to take care of other places." It seems that Xiao Hongyu is also a heroine among women, I don't know what you think? ”

"Shaanxi!" Xiao Hongyu said categorically, looking at Zhang Zhimu with a pair of bright eyes.

Zhang Zhimu admires this little red jade from the bottom of his heart, if you want to talk about ideology, Huang Yukun and Yang Yulin can't reach the level of little red jade.

Seeing Xiao Hongyu's smug face, Zhang Zhimu deliberately said: "Xiao Hongyu, don't you understand that a woman is virtuous if she is not talented?" ”

"Is Zhang always complimenting me?" Little Ruby asked.

Zhang Zhimu said: "What we do is like sailing against the current, if we don't advance, we will retreat." We can't defend Shanxi. We will never let Li Zicheng call again, so when we have the chance, we will go out and clean them up. ”

Xiao Hongyu said: "I remember I told Mr. Zhang, do you lack a prime minister? ”

Zhang Zhimu looked at Xiao Hongyu very solemnly and said: "Li Mao is a great candidate, but he has never had a chance to show him. ”

At this time, Zhang Zhimu had already treated Xiao Hongyu as a friend to talk about this matter.

Xiao Hongyu said: "Li Gongzi has always been away from your side, if he suddenly comes back to take charge of big things, aren't you afraid that he will be jealous of his 'one term of envy'?" ”

"It's fine. Dragons are dragons everywhere, and bears are bears everywhere. I'll do everything I need to do. Zhang Zhimu's good impression of Xiao Hongyu is increasing little by little, and by his side, no one except Chen Yufeng has talked to him about such in-depth issues. This made Zhang Zhimu's heart feel very warm.

However, Zhang Zhimu knew that Xiao Hongyu was talking to him in the house, and Yang Yulin couldn't sit still outside. Zhang Zhimu hurriedly stopped talking and said, "Don't talk about such a thing when you go out." ”

"Mr. Zhang, rest assured, Hongyu knows the severity." Little Hongyu said.

"That's good." When Zhang Zhimu spoke, he looked at Xiao Hongyu. The gaze in Xiao Hongyu's eyes was warm.

This time, Xiao Hongyu was embarrassed and said, "It would be nice if this battle was over earlier." It's been a long time since I've been back to the South. A lot of clothes have to go back to the south to buy some. ”

"I'm homesick. Rest assured! Soon. We don't have time to play with Li Zicheng. Zhang Zhimu said.

The Yaogang People's Army advancing to the south had a total of three people.

The first way is Li Jing's team; The second road is Liu Chenghuang's road to the west of the Fen River; The third road is the brigade led by Chen Yufeng.

Li Jing and the others followed the retreating soldiers of the Dashun Army all the way, and when they came to the front of Yuncheng, they learned that Yuncheng was the meeting place of the Dashun Army. However, many people have already driven in the direction of Fenglingdu, and they have received the news that Li Yan and the red lady who have come here have been deceived by Li Zicheng into the big tent and arrested, and Li Zicheng has already led the men and horses to leave Yuncheng. Yuncheng only left the military division and Liu Zongmin to gather the men and horses behind.

Li Jing judged that it was impossible for Li Zicheng's army to completely cross the Yellow River in a short time by boat through Fenglingdu, and Fan Chengkun and their fleet behind would soon block the Yellow River, but Li Zicheng and they still had a road to follow Liu Fangliang along the Yellow River. Li Jing's idea was that the Dashun army in this direction could run as much as they wanted, but things couldn't be taken away by them. After he had made up his mind, he arranged his own team and personally led people to Lishan.

The people on Lishan almost didn't cry when they saw Li Jing bringing people here, they didn't have any news from the kiln here, and the anxiety was really tormenting. Seeing Li Jing, Li Jing briefly introduced the situation, and the brothers on the mountain jumped up. Someone said: "I'll just say that Li Zicheng can't take advantage of our kiln." ”

The brothers of Lishan also introduced the fact that they had repelled several attacks by Li Zicheng, and Li Jing said: "Your merits will be remembered by everyone at Yaogang." You've done a great job. ”

The leaders of Alexandria, who were all former officers and officers, knew that there would be no more fighting in Alexandria, and the big leader said, "We have nothing to do here." Captain Li, let's go down the mountain with you and see if we can catch a fight. ”

Li Jing said: "To tell you the truth, I came up to the mountain to invite you. Our Yaogang's plan this time is to directly take the whole of Shanxi, so there is no need to have so many soldiers on your mountain in addition to production in the future. Now you will choose some of your best soldiers and go down the mountain with me. We have to block Li Zicheng's escape route to the east. What do you think? ”

The leaders of Alexandra said happily: "Great, we have been suffocated for a while." ”

The big leader said, "It's no problem for us to pick out five hundred elite soldiers." If needed, there are still 20,000 Salt Gang disciples. ”

Li Jing said: "You will send 500 people, and the rest will stay in the cottage." Two thousand men from the Salt Gang followed us down the mountain. In addition, he told the brothers of the Salt Gang that the brothers of the Salt Gang had been formed into the team of the Kiln Gang. We are family. ”

"Don't worry, Captain Lee. Over here. We have been with our brothers in the Salt Gang for a long time. Have a good rest tonight, and we'll lead 2,500 men down the mountain with you early tomorrow morning. The big leader of Alexandra said.

When a battalion of infantry was arranged to stay behind in Hejin, and Liu Chenghuang led the team to cross the Fen River, he made contact with Chen Yufeng and them. Chen Yufeng ordered them to cooperate with Fan Chengkun along the Yellow River and their naval army to slowly approach Fenglingdu. Chen Yufeng and their army quickly pressed towards Yuncheng.

At this time, the military advisors Song Xiance and Liu Zongmin didn't want to be surrounded by the Yaogang people anymore, so they discarded a large number of baggage and fled to Fenglingdu together.

However, the current of the Yellow River near Fenglingdu was very fast, and the boats kept transporting the soldiers of the Dashun Army back and forth day and night, and the speed was not fast.

Song Xiance, who came to Fenglingdu, was relieved to know that Li Zicheng had arrived at Tongguan. However, when he found that the convoy of gold, silver and jewelry carried by Li Zicheng was still parked on the north bank of the Yellow River, a wave of blood surged in his chest. It can be seen how embarrassed Li Zicheng was when he crossed the river. But this is the capital of the Dashun army's food, how can it be left here and no one cares.

Song Xiance looked around and said to Liu Zongmin: "General Quan, if we transport these boxes by boat and don't let the soldiers crowded on the dock get on board, the soldiers can push the boxes into the Yellow River." I see that we will send a group of men and horses to follow the direction of Liu Fangliang's march along the north bank of the Yellow River to the east, and then cross the river when we encounter a place with a wharf and a boat. You can't leave that to the kiln people. ”

Liu Zongmin said: "Strategist, I'll take people personally." ”

Military advisor Song Xiance said: "No need! Don't hitch a ride on you for these things outside of you. We've done enough. Just arrange a reliable man to lead 10,000 cavalry. I can't get through here anyway. ”

They knew that Li Jing had calculated their retreat and was leading people to wait for them.

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anesthesia, anti-inflammatory, blood transfusion, suturing, surgery; Zip code, constitution, patents, stocks, scientific and technological innovation. --Progress of "Memories of the Southern Song Dynasty".