Five thousand years ago, before the disaster, the location of Feixiong city was a huge super city. Feixiong city was built on the ruins of the city, and the ruins are the most important resources of Feixiong city.

Therefore, the layout of Feixiong city is East and West. Around the ruins with the most intensive resources in the past, urban areas have been built one by one, with high walls on the periphery.

Between the urban areas, the distance is far, many places are blocked by ruins, the road is rugged, and the traffic is inconvenient.

The Zhenqi rail train set up in the air has become the best means of transportation. Most ordinary people take Zhenqi rail train to and from their families, schools and factories every day.

As soon as Wu Mayan and Li Yaogang got on the train, a conductor came up to check the tickets. Wu Mayan raised his chest and said in a loud voice, "I'm a gas refiner!"

The conductor immediately changed his attitude and said respectfully, "please go to the special carriage of the gas refiner in front of us, this..."

Wu Ma Yan added: "he is my friend and an air refiner, but recently he was injured in hunting. I'll help him out later."

Under the guidance of the conductor, they passed through the two carriages. When the passengers saw the direction they were going, they knew that they were all gas refiners. They all showed admiration and respect, as if they were some great heroes and figures, which made Li Yao feel embarrassed.

Compared with the ordinary car, the exclusive car of the gas refiner is not so luxurious and exquisite, but there is a big iron frame at one end of the car, on which there are many black metal balls. Each ball is slightly larger than the palm of Li Yao's hand, and the surface is full of holes and valves, which reminds Li Yao of the ultra-high pressure polycrystalline reaction furnace cauldron on the crystal armor, just more rough and primitive.

Wu Mayan naturally picked up two metal balls from the shelf. After thinking about it, he picked up one more and took Li Yao to find an empty seat to sit down.

Looking over his head, Li Yao found that there were several gas refiners sitting in the other card seats. In front of each gas refiner, there were two or three metal balls.

Just now Wu Ma Yan also said to the conductor, to help him out, I don't know what it means.

"Woo

The roar of the train, not only the front of the real gas car, but also the bottom of each car, spewed out a lot of white smoke. The car seemed to be shrouded in a haze, rumbling forward, and gradually raised to a height of 20 or 30 meters above the ground.

Outside the window, Li Yao enjoyed the scenery with great interest. Not far away, he saw five steel towers with a height of more than 100 meters. In the middle of each tower, a huge spiral iron pipe pierced deep into the ground.

At the top of the tower, more than a dozen white smoke are emitted, just like a roaring dragon, which makes the iron pipe continuously drill to the ground.

Wu Ma Yan followed his eyes and explained with a smile: "Uncle sand scorpion, this is the" real gas water dragon "in our Feixiong City, which is specially used to drill for groundwater!"

"Everything is good in the area of Feixiong city. There are a lot of quartz veins in the open pit. It's very convenient for mining, but there is a lack of water!"

"Since the establishment of these genuine Water Dragons, they can drill to the deep water source hundreds of meters below the ground. They are clean and delicious. Only then can the problem of water shortage be completely solved. The population of Feixiong city has gradually increased, and it has become one of the largest cities in the six divisions of Tieyuan."

Li Yaomu did not turn his eyes.

When he was in Tianyuan realm and Feixing realm, he also saw many earth penetrating magic weapons driven by crystal stone power.

nevertheless