Jiang Xinxu said: "Considering that the switch is no longer connected to the phone in the tunnel, I have simplified the circuit, there is no need for voice gain, and the ring-current voltage does not need to reach the standard voltage. …… Rest assured, it's perfectly fine to use it for a short period of time. …… , just wait for the maintenance personnel of their telecommunications bureau to completely repair the switch, and then dismantle it. ”

Guo Qian is now full of confidence in Jiang Xinwei, and as soon as she heard him say that there was no problem, she believed it.

The reason why Jiang Xinwei made this "circuit board" was just to make an emergency, to prevent the two maintenance personnel of the telecommunications bureau from being unable to repair the switch in a short period of time, and the situation that the mine had to use a telephone.

While speaking, Jiang Xinwei completely restored the radio in the broadcasting room.

At this time, the maintenance personnel of the two telecommunications bureaus also sentenced the two circuit boards to death after some hard testing: "These two circuit boards have no repair value at all." …… It can't be repaired!, it can only be replaced. ”

A maintenance worker threw the probe of the multimeter and said to Zhu Jianhua, who was standing next to them to assist them: "Where is your external telephone, I want to call our leader, the circuit board is too bad, there is no way to repair it, and we can only take the good circuit board from our unit to replace it." ”

As he spoke, he added: "The two of us are the vanguard, and our main responsibility is to understand the situation, repair if we can, and report to the higher if we can't." There is a large maintenance team coming in the back, don't worry. ”

Zhu Jianhua is naturally relieved now, and there is no problem with whether the switch is repaired temporarily or not. He didn't know if the maintenance staff's words were looking for himself to go down the stairs or if it was indeed the case, but he was a little uncomfortable when he saw the other party's lofty demeanor.

Young and vigorous, he wanted to suppress the arrogance of these guys, so he first pointed to the telephone on the table next to him, and said, "That is the phone of your Fengjia County Post and Telecommunications Bureau, you can call outside." As he spoke, he asked the maintenance personnel surnamed Wang, who was still testing the circuit board, in a very ignorant tone, "Wang Gong, is there any other way to make the switch temporarily open?"

The maintenance worker surnamed Wang sneered: "If you don't understand, don't talk." You know no, you say it and it makes you look stupid. …… Do you think that a switch is a stool at home, and a broken leg is propped up with a wooden stick?

Zhu Jianhua continued to pretend to be ignorant, and asked with great curiosity: "Can you replace the electronic components of these two circuit boards with the components in the radio, and use them to make two functional boards?"

The two maintenance personnel were stunned for a moment, and then looked at Zhu Jianhua with disdain.

One sneered: "Use radio components as the functional board of the switch?

Another scoffed: "You think you're Edison?...... Don't you know how naïve you are?"

Zhu Jianhua really couldn't stand the other party's ridicule, grabbed the hand of a maintenance worker, dragged him to the switch, pointed to the circuit board that Jiang Xinwei had soldered with cardboard, and said: "Look! Do you see it? It is soldered with the components of the radio, and it can make the switch talk!"

The maintenance personnel who were dragged in saw the cardboard with the soldered components, first stunned, then laughed, and greeted his companions: "Haha, Wang Gong come on, come and see their functional board, it is guaranteed to open your eyes! This kind of PCB board is beyond the world's highest level, he said that it can be used as a switch to open ......"

The maintenance staff surnamed Wang ran over to take a look and was happy: "Cardboard to make PCB? Hehe, I really admire, this technology is estimated to be not even up to the United States, right?"

Their ridicule obviously angered Guo Qian next to her, only to hear her snort coldly and say, "If you don't have this ability, forget it, why are you still laughing at others?...... ,Hmph, if you don't believe me, you can pick up the phone and give it a try!"

Two maintenance personnel, you look at me, I look at you, Wang Gong stared at Guo Qian and asked in surprise: "Impossible......! Can you get through on the phone?"

"Give!" Guo Qian handed him the headphones on the seat, staring at him with angry eyes.

A few seconds passed, and Wang Gong, who was holding the headphones, looked at the cardboard soldered with electronic components in disbelief, and muttered, "How is it possible?...... With just a few components, how can we realize the functions of the bell flow board and the voice relay board?"

Another maintenance worker was also full of admiration: "This ...... Who made this? Such a ......."

……

At this time, Jiang Xinwei was no longer in the computer room, and he took the restored radio to the upstairs broadcast room.

Seeing Jiang Xinwei walk in, the female announcer had palpitations, subconsciously pressed her chest with both hands, and asked a little frightened: "You...... What else are you going to do?"

Jiang Xinwei remembered that he had pushed her through the chest and pushed her back several steps, so he couldn't help but smile apologetically and said, "Don't do anything, didn't I requisition your radio? Thank you, I'm sorry I was in a hurry!"

“…… The female announcer was obviously not at ease, she saw him dismantle the radio with her own eyes, but thinking that repairing the switch was more important, she didn't dare to blame Jiang Xinwei for anything, and still buried her anger in the bottom of her heart, but she couldn't say anything to forgive the other party, and stammered, "It's repaired?...... Is this radio still usable? Is it still as good as it was?"

"Definitely! You don't have to doubt my craft. Jiang Xinwei bragged in his mouth, but he was a little uneasy in his heart.

After all, he doesn't have a special instrument for commissioning, and he doesn't have a keen hearing to distinguish the subtle differences in sound quality, although he knows that the radio will definitely work normally, but whether its sound quality has changed, he has no bottom in his heart.

The female announcer snatched the radio from Jiang Xinwei's hand like a snatch, skillfully plugged it in, and then turned the volume buttons. Hearing the sound of the radio station coming from the radio, the woman first glared at Jiang Xinwei, and then quietly distinguished the sound quality.

Just when Jiang Xinwei was worried that she would hear the sound quality problem, the female announcer waved her hand and said, "You go." Others shouldn't be able to hear anything,...... Hmph, you're in luck......"

After all, she is not confused, Jiang Xinwei is the benefactor of the whole mine, not to mention that the radio can speak, she really can't make a sound, and she can only stare dryly, and the last sentence is just to vent her irrepressible anger.

Jiang Xinwei said thank you again and left, he didn't go back to the computer room, but walked towards the place where the accident happened. He hadn't gone far before he saw two military trucks whizzing past with soldiers.

When they saw the soldiers, the people on the road all looked relieved, and some people couldn't help but say, "Great! ”

When Jiang Xinwei walked towards the site of the mine disaster, in a house not far from the exit of No. 4 Mine Road, Mine Manager Guo and several technicians were seriously studying a new rescue plan.

With the phone calls of Mine Manager Guo and Luo Dihui, the rescue plan immediately had a general direction, and there was no need to guess where the trapped miners were, and there was no need to study where the rescue tunnels were digging.

All they have left is to discuss how to excavate the safest and most efficient. There are currently two options:

The first method is to organize people to start digging holes halfway up the mountain, diagonally digging in and down.

The second option is for rescuers to dig from the bottom of the mountain and dig horizontally to the location of the currently trapped miners.

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