Lin Xi looked around and roughly understood his mistake.

By the standards of the Tang Dynasty, the inhabitants of this settlement were extremely poor and technologically backward. Several large-scale power generation technologies are unusable due to a lack of electrical equipment, and low oxygen levels make combustion quite difficult, making it impossible to talk about small generators.

As for batteries, even fuel cells or bio-batteries, the technical level is far beyond the current level of settlements, let alone polymer batteries. Micro fusion batteries are also cutting-edge technology in ShineTang.

The easiest and cheapest way is to add oxidizer directly to the fuel.

They went up to the second floor, where there were two bedrooms and a storage room, where a few guns and some ammunition were placed, as well as knives, armor, and some special hunting tools.

There is a ladder on the second floor that leads to the top floor, and the sealed door for the exit opens a line.

Li Ruobai went out to take a look, saw the open bunker on the third floor, and climbed back to the second floor.

Chu Jungui looked at an oxygen tank placed next to the wall. The gauge on the oxygen tank showed that there was still a third of the content inside. This old-fashioned pressure gauge was quite a novelty for him. Even in Xinzheng, these are old antiques that can only be seen in museums.

Chu Jungui sensed that the oxygen content in the room was about 18%, and it was still slowly decreasing. The armors of the four men all have their own air filtration and oxygen supply capabilities, and they don't feel the slightest sense of this. Orm was a little short of breath, he reached out and unscrewed the oxygen tank, put some oxygen out, and filled the small tank he was carrying on his back.

Li Ruobai touched the oxygen tank and asked, "Where does the oxygen come from?"

"We have our own oxygen supply. However, the raw materials need to be bought from the city. ”

"Go check it out. ”

"I'll take you there. ”

Aum led the four of them out, and then walked into the next house, and said, "This is Bonnie's house, she died of her husband two years ago, and her life is very bad." You can go in and have a look, and you can get a general idea of what kind of life our people live here. ”

The four of them are also curious, so naturally they will not object. It's not often that you get to look at what humans lived hundreds of years ago like this.

Bonnie's home is only two floors and much smaller. There is only one bedroom on the second floor, and the oxygen tank used is also much smaller. As for the first floor, the number of carbon rods used as fuel is also small.

Oxygen and carbon rods with additives are the common currency of the people of the settlement, and if there is one more thing, it is weapons and ammunition. These three things are very few in Bonnie's house, and it is obvious that she is really poor.

After looking at the homes of the two residents, the next step is some important public facilities in the settlement. There are three main facilities here: an oxygen supply station, a water room, and then a cold storage.

The water room provides filtered drinking water, while the cold storage is an indispensable facility for storing food. Both locations are connected to small generators to keep them running.

There are three small generators throughout the settlement, all of which use biodiesel to generate electricity, most of which is used for the consumption of oxygen stations.

The oxygen supply station here is a three-storey building, and the first floor is a bottling hall dedicated to oxygenating the empty oxygen tanks of each house. On the second floor are individual sealed rooms where oxygen concentration can be breathed directly. Some hunters who can't afford to pay for oxygen can live here, and a few people in one room can minimize the cost of oxygen.

The staircase leading to the third floor has a heavy iron door with several locks. Orm took out the keys, opened the locks one by one, pushed open the iron door, led the four of them up to the third floor, and said, "This is the most important place in the entire settlement, and everyone's oxygen source is placed here. ”

Orm pushed open a door, and in the room behind him were large plastic buckets, all tightly sealed.

Pointing to the plastic buckets attached to the pipes by the wall, Aum said, "Just connect them to the pipes and you can get an endless supply of oxygen." Such a barrel is enough for a family to use for a month. ”

Several other rooms were filled with similar plastic buckets.

Li Ruobai was unceremonious, moved an unused bucket, cut the sealing strip with a knife, opened the lid of the barrel, and saw that it was all milky white viscous liquid, and bubbles kept coming out of it. He picked a little bit with his knife, scanned the composition, and said, "It's a little more efficient than the oxygen supply scheme used in the AIP technology of submarines in the old era, and there is no difference in essence." It is not on the same order of magnitude as our solid-state oxygen supply technology. ”

"Where did these oxygen tanks come from?" Lin Xi asked.

"Bought in the city. Every time you go to exchange the old barrel for a new one, you can pay the fee again. ”

"Go to the town hall. Li Ruobai said.

"There is no town hall here. ”

"Then go to your house, I'm going to find a place with a map anyway. Including the city and surrounding areas, don't tell me there isn't. ”

Aum sighed and said, "Go to my house." ”

Leaving the oxygen supply station, I saw several small shops on the way, some selling prey and furs, and some selling homemade tools and ammunition. Now all the shops are empty, and the owners are still standing outside the settlement.

Orm's home is the only four-story building in the entire settlement, which not only has a kitchen, living room, but even a dedicated bathroom. Hot water is also a luxury here. Wherever fuel is used, accelerants are needed, which is equivalent to consuming oxygen.

Orm even had a study of his own, and on the wall hung a topographical map of the surrounding area, indicating not only the city, but also the location of five or six settlements, as well as some special markings, which should be the source of some resources.

All four of them have helmets to take pictures and scans, and they can memorize the map at a glance.

"Is there a map with a larger scope?"

"What do you want that thing for?" Orm wondered.

"Don't you want to look far away?"

"My grandfather's generation built this settlement, and until now, there are still many places around it that have not been thoroughly explored. If you want to go far, you have to have fuel and oxygen. ”

Li Ruobai and Lin Xi glanced at each other, and then asked, "Where did you come from, how did you get to this planet, and how long have you been here?"

Orm took off his breathing mask, took a sip of water, and said, "It's been a long time coming, and it's almost a legend for a long time. Fortunately, my father told me some when he was alive. ”

"It is said that our ancestors came from the depths of the universe who got lost while exploring the starry sky and came here. At that time, the migrant ship they were on was no longer capable of sailing again, and they had to settle here. ”

Li Ruobai's eyes lit up and asked, "Where is that immigration spaceship now?"

If you find the immigration ship, you will be able to find out where it came from. A few hundred years ago, the star fields that humans explored were quite limited. Finding its starting point, it naturally found its way home.

Orm glanced at him, pointed to the huge brown planet in the sky outside the window, and said, "Up there." ”

Li Ruobai suddenly sneered, "Your joke is not funny. ”