As he spoke, Zhou Tong pointed to the shelves in the first and second rows, "The periodicals and newspapers in these two rows are all about communication radar, and the first row is the periodicals and newspapers distributed throughout the country, and the content in them is mostly introductory, you can read this row first." ”

"The second row of shelves are periodicals and newspapers exclusively for the military, which are not open to the public, and the knowledge in them will be relatively detailed, but it also includes a lot of professional knowledge, which should not be applicable to you now."

Everyone thanked Zhou Tong, took a journal from the shelf in the first row, sat down at a nearby table and read it.

Zhou Tong did not return to his seat, but also took the latest journal from the shelf, sat opposite Ruan Haocheng and read it.

The time passed quickly, and soon it was 9:20 p.m.

Because the four of them had to go back to work with the junior high school graduates of their class to guide other comrades-in-arms to learn the knowledge in primary school books, they had to reluctantly put down the journals and say goodbye to Zhou Tong, who seemed to be a little reluctant to them.

As soon as he walked outside this building, Chen Ziqiang, who had already been a little impatient, opened his mouth, "Haocheng, the radar communication system is so amazing, it can directly detect military targets such as missiles, aircraft, and ships?" ”

Ruan Haocheng nodded with a somewhat solemn face, "Since its function is so powerful, now countries around the world should have invested a lot of energy in this research." ”

"If one side's radar system is weaker than the other's, it must be at a disadvantage in war."

Chen Zhiyun couldn't help but think of the war that had lasted for several years in the south, could this be the reason?

"This is only one aspect, if you have the ability to detect the other side's radar system and destroy it, it will definitely help the war to advance."

Ruan Haocheng thought that if the radar systems of both sides were powerful, then those who had the ability to eliminate other people's radar systems would definitely have greater initiative.

Several people walked and chatted all the way, and it didn't take ten minutes to return to the door of the dormitory.

"Tomorrow after dinner, we will go together, I think we had better prepare a notebook for each of us, record some important things, and then we will find time to discuss them."

Before parting, Ruan Haocheng made a suggestion.

"Well, I think it's necessary, I'll prepare the book, you don't have to worry about it."

Chen Zhiyun knew that these people had no money in hand, so he took over the matter of the book.

Although Ruan Haocheng was a little embarrassed in his heart, he did not refute it.

By the time they returned to their dormitories, the junior high school graduates in the class had already begun to teach others.

Ruan Haocheng smiled apologetically at Dong Xiao, then walked to the big table and instructed the others to practice holding a pen and writing.

The next day, to their surprise, Mr. Ming gave them a simple textbook that he had compiled himself.

In the evening, when they went to the modern science library to check the materials, Zhou Tong gave each of them a thick notebook that looked not cheap, saying that it was specially sent by Instructor Zhang.

In addition, Zhou Tong deliberately pointed to the 'Keep Quiet' sign on the wall and told them that Instructor Zhang specially explained that they could discuss problems here and not care about this sign.

The four of them thought that all high school graduates had such special treatment, so they didn't take it to heart, but seized the time to start checking the information and recording it.