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After driving a little further, the overall outline of the building could already be seen by the moonlight, and at this time, not only Su Yichen and Gu Damai in the front row, but even Hu Zhijun and Wan Changchun in the back looked wrong. Obviously, the building in front of them could not be the expected supply station, because the supply station of the oil exploration team was just a row of two-story simple houses, and there was an earthen fence in front of the house, and this building was obviously much taller than the two-story simple house, roughly estimated to be about three or four floors, and the top was not flat, but pointed, similar in appearance to a much enlarged yurt, and there was no earthen fence in front of it, and it was surrounded by a flat desert.

"What is this place?" Su Yichen subconsciously stopped the car, his head sticking out of the window to look at the building in front of him.

"Why does it look like a big grave bag?" Wan Changchun frowned and said, not to mention, if this building is reduced several times, it will indeed look like a common tomb, but where can such a large tomb appear in such a place? Unless it is an emperor's tomb, don't forget that the area they are in now is in the desert area of the center of the Great Northwest, and in ancient times this place was a country in the Western Regions, and the habits and customs were very different from those of the Central Plains.

Hu Zhijun had never seen such a building before, and now he was sure that this was definitely not the supply depot they were going to. But what is it about such a strange building in the desert? The three of them looked at each other, unable to understand for a while.

"Maybe this is a mosque?"

At this time, Gudama, who had been silent, suddenly said a noun, and the three of them looked at him at the same time.

"You say this is a mosque?" Hu Zhijun asked, and Gudamai hesitated: "I just think it's like, you see, this round shape, and this spire, isn't it very similar to the roof of the mosque?" Perhaps an abandoned mosque. ”

"It's possible......." Wan Changchun thought about it and nodded, pointed to the building in front of him and said: "Don't say it, Xiao Guyi reminded me that it also feels like the roof of a mosque, you look at this shape, and the size, like!" It's so similar! ”

"Just one roof? If this is a mosque, what about the buildings below? Su Yichen asked suspiciously, even if this is an abandoned mosque, it can't be preserved only by a lonely roof, right?

Hu Zhijun immediately laughed, and then even Wan Changchun and Gu Damai laughed. Su Yichen didn't understand what was funny about the sentence he asked, and it wasn't until Wan Changchun explained that he suddenly realized.

Su Yichen, who has been in the mainland since he was a child, and is still the first time to come to the northwest, does not know that the sand in the desert is actually flowing like water, under the action of the wind, the sand in the desert is easy to gradually bury the buildings in the place, and even when encountering a sandstorm, only a few hours of strong winds can completely erase the traces of an ordinary building, so that most of it goes deep under the sand.

If this building is really an abandoned mosque, then after all these years, the main building under the roof should have been buried under the sand, and the exposed part is what they see now.

However, when you come across such a building in the desert for no reason, everyone has a strong curiosity. Is this an abandoned mosque, this is just a guess, as a scholar, although Wan Changchun is not a study of history, but still want to go over to see what it is, Hu Zhijun thought about it and agreed to Wan Changchun's request, anyway, the building is not far in front, everyone went over to see it and did not delay much.

After getting out of the car, the four of them walked to the side of the building, a few hundred meters away from the building, and after walking for a while, they arrived at the front. When they arrived at the building, speculation that it was a mosque was immediately overturned.

The reason is very simple, when they stand in front of the building, they find that the whole building is actually a complete whole, there is no sign of heaping on the surface, and it looks unusually smooth, if it is the roof of an abandoned mosque, it will definitely not look like this. It is important to know that weathering in the desert is extremely severe, and the mechanical damage caused by the wind and sand and the temperature check day and night will cause the surface to leave traces like knife cuts, which is commonly known as weathered rock. What will happen to the rocks that have gone through thousands of years, not to mention the artificial buildings, even if they use the best building materials, they cannot escape the weathering and corrosion of nature.

"Weird, what is this?" Wan Changchun couldn't help but reach out and touch the outer wall, and when his hand touched the outer wall, his face suddenly showed an expression of extreme surprise.

"What's wrong, Mr. Wan?" Su Yichen saw that Wan Changchun's expression was a little strange, and hurriedly asked.

"Xiao Su, you come and touch it."

Su Yichen raised his hand and touched it in the same way as Wan Changchun, and the moment his palm touched the surface of the building, the same surprised expression was also revealed on his face.

"This ...... This seems to be metal? Su Yichen was very surprised, just when his palm touched the surface of the building, a metallic cold feeling came from the palm of his hand, and strangely, the surface that seemed to be smooth had a subtle uneven feeling to the touch, as if there were any textures on it, but when he looked closely, he couldn't find where these textures were.

What's even more strange is that if the exterior of this building is metal, it is reflective due to the characteristics of metal. However, in the moonlight, the reflection of this building is not strong, on the contrary, it is weaker than ordinary rock, showing a dull grayish white, which is why they mistakenly thought that this was the roof of an abandoned mosque.

Seeing Wan Changchun and Su Yichen looking at each other, Hu Zhijun and Gu Damai also stepped forward to touch them, and they were also curious. However, unlike Wan Changchun and Su Yichen, Hu Zhijun and the others just wondered why the surface was metal, after all, they were just ordinary PLA soldiers, and they didn't know as much about the characteristics of metal as Wan Changchun.

Stroking the metal appearance, Wan Changchun and Su Yichen's expressions became more and more serious, the touch and characteristics of this metal appearance were completely unexpected, as a professor in the School of Science, Wan Changchun was not ignorant of materials science, on the contrary, he also had a lot of research. As for Su Yichen, of course, he also understands this, it is precisely because of their understanding of materials science that they are curious about the strangeness of the appearance of this metal, according to what they know, it seems that no metal will have this characteristic, is this an unknown alloy?

But if it's an alloy, then who made it? And who used it to cast the surface of such a huge building? It is even quite possible that the entire building is made of this alloy inside and outside. What's even more bizarre is that such a large alloy building appears in the desert again, what is its purpose? What's the point of building it here?

These mysteries flashed through their minds, but no one could answer them. But in any case, there is no doubt that the alloy building they stumbled upon was not simple. Because of the change in the situation, Wan Changchun told Hu Zhijun to ask for a temporary study of this alloy building, at least to understand what it was before setting off.

"I don't think it's necessary, do I?" Hu Zhijun didn't understand Wan Changchun's request, he shook his head and said: "We've been delayed on the road for a long time, I'll record this location first, and then contact the base to send someone over after I find the supply station." ”

"No! I had to do a simple test first, or at least take a sample. In the desert, the appearance of this building is too strange, and I have never encountered this metal before, and I feel that it is not simple. Wan Changchun shook his head and insisted on his opinion, as a scientist, it is absolutely impossible to let him abandon the unknown when he encounters it. However, Hu Zhijun's words also make sense, they don't have much fuel, and Hu Zhijun's physical condition is not very good, so he must arrive at the supply station to contact the base as much as possible to ensure everyone's safety.

"Lao Hu, Teacher Wan and I won't delay too much time, so let's give us half an hour, and then continue to issue after half an hour?" Su Yichen persuaded on the side, Hu Zhijun thought about it and finally relented, and promised to give Wan Changchun half an hour.

Half an hour is certainly not enough for in-depth research, but a preliminary investigation is still fine. Wan Changchun didn't waste time, and beckoned Su Yichen to analyze around this alloy building.

They first circled around the entire building, roughly calculated the diameter of the entire building to be between 6.5 meters and 6.6 meters according to the gap and number of steps, and then calculated that its height was about 12 meters according to the comparative measurement method, based on Su Yichen's height.

After doing this, Wan Changchun took out a bunch of keys hanging from his waist, with a folding knife on it. He opened the knife, approached the building, raised his hand and hesitated for a moment, then carved it with great force.

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