Li Qingyu opened his suitcase, which was full of Hanjing.

It's very beautiful. If you think about it, it's comparable to diamond. It's also very similar to Lingjing. If it's not for the chilling atmosphere it always gives off, it can almost be confused with Lingjing.

The size of the cold crystals in the suitcase is very average. Each one is the size of peanuts. They are all irregular shapes without careful carving.

Just a moment after Li Qingyu opened his suitcase, a white mist appeared on the top of the suitcase. This was because the air temperature dropped instantly and the water vapor in the air condensed into water vapor.

With the spread of white steam, the temperature in the room dropped rapidly, and a layer of white frost appeared on Li Qingyu's eyebrows and hair. However, when Li Qingyu's real Qi turned a little, the frost on his eyebrows and hair disappeared.

"Good guy, no wonder it's called Hanjing. It's really cold. This is the best refrigerant. It's great to use it to make a refrigerator. It doesn't consume electricity and is environmentally friendly. "

Li Qingyu reaches out and grabs a handful of Hanjing from his suitcase. He raises his hand. Hanjing slips from his fingers into the suitcase, making a clattering sound.

"That's a good idea, but the reserves of this thing on earth are too small. It's a strategic material, and it's almost impossible for civilian use. As for China, it doesn't produce it at all, let alone replace it for civilian use. In fact, these cold crystals in your hands are all our belongings. You brought it back. " Zhou Xianguang said with some regret.

"The Pacific Ocean belongs to the world, not to the United States. If the Americans can exploit it, of course we can. Haven't we been studying deep sea mining technology? Are there any results now? " Li Qingyu asked.

"There are achievements, but it is estimated that they will never be used. The relevant departments are planning to stop this project."

Li Qingyu asked in surprise: "why?"

"According to the information provided by the United States and the certification of geological experts from all over the world, the cold crystal deposits in the Pacific Ocean have been dug up."

"I... grass, the Americans dug it up before we started?" Li Qingyu can't help but feel depressed.

"It's just that there are too few reserves of this stuff."

"That can't stop. Now the mines in the Pacific Ocean are going to be dug up. Who knows if there are any in other parts of the world? Maybe it's in other places, too? Now, if we stop studying and find minerals later, it's still American food. We'd better stare at it. " Li Qingyu said.

"Ha ha, I'm worried about you. Don't worry, there are still a few muddleheaded people in the relevant departments. So, our research is still going on. But as for when we will be able to exploit it, the situation is not optimistic. " Zhou Xianguang said with a smile.

As he spoke, Zhou Xianguang took out a U-disk from his desk drawer and threw it to Li Qingyu. He continued, "here is the information you want. Mark Twain just sent it to me last night. We have paid a lot for this, which can be regarded as resource exchange. You must cherish it, don't let the things we paid be wasted. "

"Don't worry, boss. There won't be any problem." Li Qingyu raised his hand to catch the U disk and said happily.

For a long time, the US star fleet has been using cold crystal to transform human body, and even created an undead soldier. Therefore, the US star fleet has accumulated a lot of experience and information on the matter of using cold crystals to transform the body.

These are the things in the USB flash drive.

Although cold crystal can change people's body, but take more will die!

If Li Qingyu wants Deng Yuqi and others to break through the bottleneck of nine layers of Qi training with the help of Hanjing and step into the realm of building foundation, he must grasp the amount of service. If you take too little, it will lead to no effect, or the effect is too small. If you take too much, it may be quickly frozen into a lump of ice and lose your life in an instant. Maybe Li Qingyu doesn't even have time for rescue!

After all, Hanjing is too overbearing!

Of course, Li Qingyu also thought about increasing it bit by bit, trial and error again and again. For example, if he took one gram for the first time, if it didn't work, he would take one and a half grams for the second time.

In this way, even if it is a little more than 1.5g, it will not be too much.

Even if there are more than one gram and a half grams of cold crystals, they won't do much harm to the body. They can hold on.

However, in fact, this method is not feasible at all!

Because every time Deng Yuqi took Hanjing, they had to take one Zhuji pill at the same time, and Li Qingyu didn't have many Zhuji pills in his hand, so he couldn't stand such an experiment.

Because Li Qingyu and Li Ruitong have not yet gathered together the herbs for the next refining of Zhuji pill, the Zhuji pill in his hand now becomes the only one left. If they use a little, they will use less. How can they allow him to try and make mistakes again and again?

If you want to make trial and error again and again, there is only one way. Through accurate calculation, you can establish a mathematical model and deduce the equation of human quality and cold crystal destructive power. In this way, you can accurately calculate how many cold crystals he can take according to everyone's physical quality.

The more accurate this equation is, the more accurate the calculated results will be. The fewer times Deng Yuqi and others try and make mistakes, the greater the chance of success. In this way, the existing foundation building pills in his hands can let as many people as possible break through the bottleneck and step into the realm of foundation building.

In order to establish an accurate mathematical model, it is necessary to have a large number of experimental data and experimental theoretical support, and China has never used the cold crystal to change the physical fitness of soldiers before.

One is that China does not produce cold crystals, the other is that China's Xinghe fleet practices martial arts and disdains to use cold crystals. After all, depending on the cold crystal to improve physical fitness, although it is rapid, but the damage to the human body is also great, will continue to reduce people's life.

But the American star river fleet has already established an undead team with this treasure!

Of course, they have accumulated a lot of data.

Therefore, when Li Qingyu and Zhou Xianguang wanted to be cold crystal, they asked Zhou Xianguang to contact Mark Twain and expressed their hope to get the experimental data in their hands.

These experimental data are confidential to the US star river fleet. Both Li Qingyu and Zhou Xianguang thought that the US would put forward many conditions, and maybe the lion would open his mouth, just like when Li Qingyu and the US star river fleet wanted things. Unexpectedly, the U.S. star river fleet showed its integrity, only raised some unimportant conditions, and asked for a small amount of Lingjing from China, then gave all the data to Zhou Xianguang.

"Why is Uncle Sam so generous this time? Won't you give us a fake experimental data? " Li Qingyu said, while the U disk into a computer.

"I've looked for professionals to see the data, but they don't know if there is any fraud. After all, only the star river fleet of the United States has ever done this. No one else in the world has done it except them. How can others judge whether their data are correct? " Zhou Xianguang quite some helpless said.

Li Qingyu has opened the files in the U disk. Looking at the full screen of data, he can't help feeling a pain.