Siheyuan: I want to take the college entrance examination and study to rise.

After finishing speaking, Ran Qiuye's face was full of crimson, He Yuzhu couldn't help but be stunned when he saw this, good guy, he just said it casually, why did he still climb up the pole

? This Ran Qiuye was too active, He Yuzhu couldn't wait to give himself a slap, even if he took care of his studies, he still wanted to take care of his life, did he still want to enter the house? Seeing Ran Qiuye's

crimson face, it was clear that he had that kind of meaning to him.

He Yuzhu didn't expect a home visit to almost get him in, he couldn't help coughing lightly: "That Teacher Ran ......

" Before the words fell, suddenly there was a crisp sound outside, which frightened Ran Qiuye's heart and quickly jumped up!

"What happened to Brother Zhuzi

?" He Yuzhu couldn't help but be speechless when he saw this, screaming and screaming, being scared when he was afraid, holding his hand, what is going on?"

Teacher Ran.

Ran Qiuye realized what was happening, and when she looked at it, she didn't know who smashed it, and a piece of glass in He Yuzhu's house was smashed.

He Yushui was also startled, the two looked at each other, and Ran Qiuye was also a little embarrassed, so he let go of his hand.

"I'm really sorry, today, I see that you still have something to do, so I'll leave first. Ran

Qiuye hurriedly walked out, He Yuzhu took a deep breath, good guy, finally left!

He Yushui pouted on the side: "Brother, you are too useless."

He Yuzhu was stunned: "What do you mean?"

"Teacher Ran just left, and you didn't say to send it away!" He

Yuzhu put a chestnut on her brain, "You little girl knows that you don't study well, hurry up and write your homework!"

Learning powerhouse is almost enough points already. He glanced at the items that could be redeemed in the system, refreshed for a while, and suddenly a new variety caught his eye.

It's a good thing, and it's so eye-catching to suddenly move back to a TV set these years, and he's still a little more low-key now, but the radio is different.

The early radios were also called semiconductors, from the electron tube to the transistor, and then to the integrated circuit, a total of three stages of change?

As early as five or three years, the first domestically produced radio, called the Red Star brand radio, was also the first tube radio in China.

However, because the industrial manufacturing technology was very weak, and the material cost was quite expensive, the radio was a very simple thing in later generations, and it was sold for a high price of 170 yuan in the new country, especially in the 50s!

For the vast majority of ordinary consumers, this is equivalent to more than half a year's salary, but even so, it is not something that can be bought with money.

The old tube radio, which would be made of a lot of materials, would be able to sell for 3,000 yuan a radio in the hands of collectors even in later generations.

This shows how good the quality of the things from the fifties is, and it is indeed a good choice for collecting.

However, compared with later generations, the current tube radio is too bulky, and the mechanical components are easy to age, the power consumption is also large, and the overall quality is too bulky and inconvenient to carry.

However, the radio He Yuzhu currently sees in the system is actually the third-generation semiconductor radio, that is, the integrated circuit radio.

This kind of technology is not yet available in China, even if Professor Chen of Harbin Institute of Technology and them are only staying at conquering transistor technology.

In the fifties, the domestically manufactured Red Star brand tube radios were also imported from Sulian.

In addition to technology and materials, even so, the price can't be beaten, and at all current levels, it is already a breakthrough to be able to make a radio with a tube.

And He Yuzhu's current refreshed radio is the third generation, the integrated circuit version.

The so-called integrated circuit is to connect the transistors, resistors, capacitors and other components required in the circuit into one, and make them on a small piece of semiconductor wafer and medium, which is easy to carry, and the original is not easy to age.

At present, this kind of technology does not even exist in foreign countries, let alone the current level of industrial science and technology in China, and it does not exist at all!

If he can make it, it will be equivalent to the outbreak of an industrial revolution.

He Yuzhu couldn't help but get excited when he saw this, and directly spent points to exchange it, seeing these drawings and various production methods, he couldn't help but sigh.

Now it is useless to have drawings, and the production of instruments must have knowledge and relevant skills, otherwise it will not be possible to make them at all.

This is not a simple watch principle, and it is impossible to make this technology now without the technology yet arrived.

And at present, his engineer skills have to be upgraded, otherwise he won't be able to do it at all.

He Yuzhu called up the AI intelligent system and checked it.

[Target Person: He Yuzhu

] [Current Engineer Level: Level 9 Engineer, only three days away from upgrading]

Three days is not bad, he can reach the level of Level 8 Engineer at present, but it still takes time to upgrade.

But this radio has to be upgraded to level 7 before an engineer can make it, how long will it take?

[Target Person: He Yuzhu

] [Time required for Engineer Level 7 Upgrade:

90 days] After assembling a new industrial machine tool last time, the time required for upgrading began to accelerate, and 90 days is already a relatively fast speed.

You have to know how many people have never stepped into the engineer level in their lifetime, but it only takes three months for him to upgrade.

It can be seen how rare it is for engineers in this era to be so precious, and He Yuzhu is definitely one of them.

But he also found a problem, since he entered the Red Star Rolling Mill, his upgrade rate has been increasing.

As soon as the first machine was introduced, the rate of upgrades began to increase rapidly.

It seems that every first time can make the upgrade speed get a qualitative improvement.

However, at the same time, he also found that in addition to the starting system, every time he made something he made could help him continue to increase his speed, which means that his continuous production speed of machine tools could also be improved.

Now the time required is 90 days, that is, the time to make one machine tool can be shortened by 9 days, then the time to make 10 machine tools can be shortened by 90 days, so that it can be upgraded directly.

When the time comes, it can be achieved in the shortest possible speed, and he can't wait to make a machine tool when he thinks of this.

As a result, as soon as he opened the door, he bumped into Director Li head-on.

Seeing him, Director Li immediately took his hand, "He Gong has a big matter now, I want you to help me, don't shirk!"