After Zhu Lei returned from Venus, he re-entered the laboratory of the Daming Empire, after all, the essence of the universe is the law of the jungle, although the Daming Empire now seems to be a relatively powerful civilization in the galaxy, after all, the highest level of Chinese Ming in the entire galaxy has only reached the sixth-level civilization, and the sixth-level level has never been found in the entire galaxy, so the Daming Empire, as a fifth-level civilization, is already a pretty good civilization in the galaxy.

But others don't know, wouldn't Zhu Lei know, even in the galaxy like the Ming Empire, there are many civilizations that have reached the level of fifth-level civilization, and there are even sixth-level civilizations on it.

And if you look at the universe, the current civilization level of the Ming Empire is nothing at all, because Zhu Lei, who owns the mall, clearly knows that only a civilization that has reached a high-level civilization or a high-level civilization above the seventh level in the galaxy civilization level can be regarded as a real cosmic civilization, and a civilization below the seventh level is not a cosmic civilization at all, and the civilization below the seventh level is only a galaxy civilization at best.

In other words, civilizations below level 7 can only develop in the small pool of the star system where they are located, and there is a wider world outside.

Although it is said that only civilizations above level seven can be regarded as cosmic civilizations, Zhu Lei also clearly knows that it is quite difficult for a civilization to develop into a seventh-level civilization, although I don't know if there is a seventh-level civilization in the galaxy, but in the introduction of the mall, the conditions of seventh-level civilizations are very harsh, and many star systems cannot develop seventh-level civilizations, you must know that there are hundreds of millions of civilizations in every star system, but so many civilizations cannot develop a seventh-level civilization. One can imagine how difficult it is to become a seventh-level civilization.

Therefore, the Ming Empire still has a long way to go if it wants to become a truly high civilization. Therefore, there is still a long way to go for the Ming Empire to become stronger, even if Zhu Lei has the existence of a mall, after all, the technology bought in the mall must be thoroughly understood, and many technologies cannot be directly used even if Zhu Lei buys the Ming Empire.

So whenever Zhu Lei is free, he chooses to walk into his own laboratory to sit in some experiments, in fact, it is not only Zhu Lei's Ming Empire Now because everyone's lifespan has reached more than a thousand years, so basically all the people in the Ming Empire have their own laboratories, although due to the amount of equipment and knowledge, as well as personal funds, etc., the laboratories of ordinary people are basically some small laboratories, and it can even be said that even small laboratories are inferior, they can only be regarded as science and technology studios, but it cannot be denied, Thanks to the existence of these laboratories, countless new technologies and inventions appeared every year in the Ming Empire.

And Zhu Lei's own laboratory is very large, and his personal laboratory is now located in his fiefdom, which is the original aerospace center, after all, since the aerospace center moved to the moon, it has been empty, so he transformed this place into his own personal laboratory.

And his laboratory is different from other people's laboratories, all the instruments in this laboratory are the most advanced in the Ming Empire, and even the laboratory in his own Yongan Group cannot be compared with these experimental equipment, if there are people of advanced civilization here, they will definitely find that most of these experimental equipment can only be manufactured by advanced civilization or above.

Although all these equipment are the products of advanced civilization, it is very rare in the intermediate civilization trading area in the mall, but there is not nothing in the mall, but these experimental equipment of advanced civilization are second-hand products in the intermediate civilization trading area, and the price can even be said to be more expensive than the original price, and even the instruments themselves are castrated products, but they are only much more useful than all the equipment produced by the Ming Empire itself, after all, the Ming Empire is now only an intermediate civilization.

These experimental equipment were all purchased by Zhu Lei at a huge cost in the mall, and even the price of an ordinary instrument in the laboratory was even more expensive than the latest space cruiser of the Ming Empire, so it can be said that Zhu Lei spent a lot of effort for his laboratory.

And in addition to these instruments, there are many strange things in Zhu Lei's laboratory, some are tens of meters high, some are only a few millimeters, and even smaller, these are all products of various other civilizations that Zhu Lei bought in the mall for dismantling and research.

And the most of the things here belong to the weapon category, after all, in the universe of the jungle, force is always one of the most important factors to ensure one's own strength, so sixty percent of the things Zhu Lei bought in the mall belong to the weapon category, of course, these weapons themselves include offensive and defensive weapons.

These forces include force strike weapons, energy strike weapons and even mixed energy and physical strike weapons, in short, Zhu Lei's laboratory has a variety of intermediate civilization weapons.

The second is things like protective shields, after all, in addition to attack, defense is also very important, so of course these Zhu Lei have to study, although there are no protective shields and other things installed on the spaceships of the Great Empire, but the Ming Empire has never given up research on these, and some of them even have the qualifications to go out of the laboratory.

For example, the high-energy particle laboratory in Zhu Lei's Yongan Group has developed a high-energy particle protective shield, which is now qualified to go out of the laboratory and be finalized for production.

However, because the Ming Empire has no plans to use force against anyone for the time being, this particle shield has not directly gone out of the laboratory for finalized production, after all, this particle shield can only protect against energy attacks and cannot defend against physical attacks, so it is necessary to wait until this kind of shield is more mature before production.

Of course, in addition to this protective shield, other types of protective shields are also being studied by the Ming Empire, such as the electromagnetic protective shield in the official laboratory of the Ming Empire, this protective shield is just the opposite of the particle protective shield, this electromagnetic protective shield can only protect against physical attacks, and the protective energy against energy strikes is very weak.

In addition, there are also stand shields, photon shields, quantum shields, etc., the Ming Empire is conducting research, but compared to the previous two shields, the experimental progress of these shields is very slow, and some are even still carrying out theoretical exploration intermittently, such as photon shields, so if the Ming Empire wants these shields, then I don't know if it will have to wait until the Year of the Monkey.