As if it were reconnaissance, the cave was located on a steep hillside. The entrance of the cave was tilted from the top to the bottom to the inside at a certain angle. There were huge rocks on both sides, and its existence could not be seen from the air or both sides. Only the cave could be seen from a certain angle.

Although the entrance of the mountain cave is not big, it can still allow the equipment required for the experiment to enter and exit, and the long mountain belly inside is the same, which makes Li Yu feel relieved. If the mountain belly cannot pass, it will have to carry out blasting construction, which will take longer. The supply materials they carry are not much, and the construction must be completed as soon as possible.

It took half an hour and all the equipment and personnel arrived at the innermost part of the cave.

The cave looks not very good, but there is a different kind of cave inside. Walking more than 300 meters into it, the entire cave suddenly expanded, forming a mountain belly space of more than 50 meters high and 500 meters in radius.

When putting all the supplies on a relatively flat ground, Li Yu first arranged someone to install lighting equipment for the cave. This only requires rough installation and does not affect the construction. Li Yu has a better lighting construction plan.

After the energy is started, temporary lighting equipment illuminates the entire mountain belly as bright as day. The entire mountain belly can be seen clearly. Although the light is a bit dazzling, it no longer affects the construction.

Perhaps the plateau area is harsh, and no large animals have ever been in this cave, and there are not many small animals, such as insects, so the abdomen of the mountain is very clean.

The entire precise topographic map of the mountain belly has been surveyed and mapped long ago, and all construction plans have been completed. The first thing to do is to level the ground of the mountain belly.

The natural cave land must be uneven, and the same is true for this cave. It has a few degrees of inclination from northwest to southeast. This condition does not meet the requirements of installing a signal transmitting device. If earthwork engineering is used, even if Li Yu has a robot for construction, it will not take a short time.

But it doesn't matter. Li Yu had long expected this situation. He developed a foam material that will harden rapidly within an hour after encountering air. During the hardening process, some equipment loaded by the robot can perfectly complete the leveling task. The ground formed after construction is not only high hardness, but also has high temperature resistance and small expansion coefficient.

So soon, the ground leveling task was completed by the robot.

"Lin Wanbai, come and help!" After the ground leveling was completed, Li Yu called Lin Wanbai who was jumping up and down to help.

"Come here, come here."

"The construction of robots under supervision, their next task is to lay flexible materials around the mountain belly. I will go outside the cave to survey the terrain and arrange defense facilities." It will take at least three days to install and debug the signal transmitting device. Although the cave is located in a radius of thousands of miles, the defense facilities are always prepared for any eventuality.

Biyi is too close to the border, and Kashmir is not far from here. Maybe someone in that powder keg will cross the border.

The defense settings arranged by Li Yu are actually installing electromagnetic guns at several peaks, controlled by the computer. In several channels around the mountain peak where the cave is located, Li Yu asked the reconnaissance ball to standby in high altitude. If someone passes by, Li Yu and the others will be warned in advance.

After Li Yu returned to the cave, the place had changed a lot, and the robot had just laid the last piece of flexible material from the top of the cave.

This material is also extremely thin, but it will become extremely strong after power on, and will not change the shape of the laying, and will emit a milky white light. It is a rare decorative material in the laboratory. Li Yu’s laboratory walls are laid in this material.

When the robot sat in the anti-gravity hanging basket and descended to the ground, Lin Wanbai turned on the power supply, and the entire mountain abdomen was covered by soft white light, which made people feel much more comfortable.

After the wall construction is completed, it is the turn to install the base of the signal transmitting device. The base is divided into four pieces for easy transportation. Although the base seems to be enough to splice the four separated parts, things will not be so simple.

The compromise brings about the increase in construction difficulty. There are many layers of tiny energy pipes in the base. When splicing, the error of the energy transmission pipe at the docking point must not exceed one tens of millions.

If the requirements are not met, the base will cause a significant increase in energy loss during operation, and the electromagnetic interference of the signal transmitting device will become more serious. In addition, it will also cause an increase in the heat dissipation of the base, causing the entire signal transmitting device to have a potential for explosion.

So it took a whole day and a half to install the base! The base passed the energy pass test and met the usage requirements.

After the base is installed, the next thing is the main body of the signal transmission. This is not difficult. There is an interface made in advance on the base. Just put the crystal carefully and install it in place.

After the main body is installed, there are the energy center and fifteen small nuclear fusion devices.

This is not difficult, and the base is also equipped with an interface in advance.

At this point, not much has been completed in the entire signal transmitting device.

At this time, the mountain belly used as a signal transmitter has changed a lot. From the inside, it is no different from a laboratory.

A signal transmitting device like a crystal jungle stands in the center of the cave. After the energy is turned on, colorful light flashes from time to time. It is the reaction stimulated after the energy is dissipated. The low but pleasant crystal resonance sound sounds from time to time. It is the sound caused by the energy brought by the crystal that is igniting, thereby circulating the air.

Everything is ready, just wait for the experiment to begin.

"Li Yu, can you send a signal? I'm so looking forward to it!" Lin Wanbai stared at the signal transmitting device.

After checking it again, Li Yu nodded after confirming that the equipment was running well, "Are you ready for electromagnetic protection?"

Lin Wanbai checked the radiation protection suit on his body, and the robot also carried out electromagnetic protection. She signaled that Li Yu had no problem.

Only then did Li Yu signal to Lin Wanbai that he could start. Just as Lin Wanbai was about to put the start titanium crystal into the special groove, the alarm signal sounded.

"What's going on? Not everything has been checked, is there no problem? How could the main control computer call the police?" Lin Wanbai said dissatisfied.

Li Yu also frowned and came to the main control light brain to check the alarm information.

"There is no problem here, it is because the defense facilities outside were touched." The source of the alarm discovered by Li Yu.

"Outside? Let's take a look." Lin Wanbai put down the titanium crystal and opened the terminal.

"Li Yu, Li Yu, look! This is a terrorist, right? It must be a terrorist! Then everyone has the responsibility to eliminate the harm to the people, so I can do some of them!?" Lin Wanbai suddenly excitedly came over to Li Yu and said loudly.

The terminal sent the surveillance image over.

Li Yu took a look and knew that the possibility of those people being terrorists was at least 90%. Of course, he also knew that Lin Wanbai did not want to eliminate the harm for the people, but was disturbed by these people!

Also, Lin Wanbai obtained the device specially developed by Li Yu, and she has never had the opportunity to put it into use, which is also a pity for her. Now she has the opportunity to make her feel happy, but she has not made her happy!

"Go, take No. 1 and No. 2!" Li Yu didn't think Lin Wanbai would encounter danger, but he still asked Lin Wanbai to carry two robots in case of precautions.

"Yeah!" Lin Wanbai jumped and ran out.

"Kamali, how far is it from the cave you mentioned?" A man with a big bearded face asked not to have a big beard. This is a team of ten people, all of whom were bearded, wearing robes and each with an AK. This is a standard terrorist dress.

In recent years, China has been increasingly severe in its crackdown on terrorist activities. In the past, the route they used to use in Xijiang Province was closely monitored by China. It became increasingly difficult to enter China's territory. After losing several personnel and materials, the leaders of the organization had to make a decision, give up the way to China from Western Xinjiang, and decided to find a way to China from other aspects.

Internationally, the form facing China is not good, and the surrounding areas are very hostile to its countries, so with the help of some countries, this person named Kamali has explored a safer route.

This time, Muha, who ranked second in the organization, led a team to confirm the safety of this route and find supply points. It can be seen that the jihad leaders attach great importance to the development of the route this time.

Unfortunately, Li Yu chose the cave as the signal transmitting device, which is also a suitable location among the routes selected by these people. As a large supply point, this cave is really suitable.

All I can say is that everyone has a good vision.

Fanatical beliefs can indeed make people challenge the limits. With just some water and dry food, these people have overcome the harsh environment. Two days later, they are not far from the cave where Li Yu is.

"Kamali, is it on this mountain?" Muha asked Kamali.

"Yes, from here, you can reach it one day. If you weren't lost, you wouldn't have discovered this place. That place was too hidden, with a large space inside, several times larger than our previous No. 1 supply point!" Kamari said excitedly.

Then his expression suddenly became low, "It's a pity that we lost four brothers to find this place."

"Well done well, Kamali, the organization will remember you for your contributions, and Allah will also remember your contributions. It is their honor for brothers to return to Allah's garden." Muha said with satisfaction, and was very excited when he thought of him being able to establish a new route to China.

The others in the team were also extremely excited. In their opinion, this was the time to make achievements. The fatigue along the way seemed to be gone.
Chapter completed!