Because biogas was first discovered in swamps, it is called biogas.

In fact, biogas can be found in many places where we live, such as septic tanks, stinky gutters, and even muddy ponds.

The source of energy in the Sun City of the Jingren Race is naturally the biogas fuel that has been mentioned by Zhu Zhu and Blood Drinking before.

And the factory that produces biogas fuel is the space where the queen of the bamboo and the kneading of a few people came to the space at this moment.

Located directly below the lake that surrounds Sunshine City, this place is an all-round three-dimensional "mud pond" space. In addition, the Jingren people deliberately introduce the sewage from production and life here, and this place has the function of both a mud pond and a sewer.

Of course, the Jing people will not be satisfied with this environment, in order to increase the production of biogas fuel, they have also tried to breed livestock in this space.

After many years of experimentation, the Jingren people found that almost no living thing could live and reproduce in this environment for a long time. Even if you occasionally encounter some rare birds and beasts with strange bloodlines that can survive and reproduce in this environment, most of them are fierce birds and beasts that are difficult to control.

Until, the Jingren people found a tribe called "Si Yan" in the Gobi Desert. The people of this tribe have long raised a beast called Dangkang. And in the long-term cultivation process, Dangkang was cultivated into a very easy to feed creature called "彘".

This kind of creature has a complex diet, it is naturally good to eat and drink, and it can survive without good food and drink, and it can survive by eating some rotten vegetables and muddy water. Moreover, he is still fat and strong.

The most important thing is that this creature is completely different from their close relative, Dangkang. Dangkang is a creature with a violent personality, and Yu is because of many generations of breeding, although he still has a certain wildness, he has long lost the ability to "spread wild".

Even for a race like the Jingren race, which is not good at fighting, the Yi is an extremely "docile" animal.

Of course, what makes the Jingren clan like this creature is far more than these reasons. They also fancy the equally spectacular amount of excretion of the intestinal hypertrophy.

While cultivating a large number of pigs in this under-lake space, it can not only solve the food problem of Jingren, but also make this space perfectly have all the environments for generating biogas.

It is also such a perfect biogas plant that can help the Jingren clan, who were robbed by the knights in three days, continue to maintain about 2,000 units of biogas fuel reserves.

After a concise introduction to the origin and functional importance of the biogas plant, Zhu Zhu seemed to have removed all disguises, and said straightforwardly: "Sister, my sister's family background is now exposed in front of you. How about it, would you like to help your sister solve this problem of the Knights? ”

Kneading it in my heart, I summed it up: this biogas fuel seems to be very important to players and NPCs in the Kunpeng District, I don't know if I can get some of it, so that I can communicate with players or NPCs in the Kunpeng District later.

As for helping to fight the Knights, it has long been recognized as an interplayer confrontation mission issued by NPCs. There is no reason not to do it if you have a task, and the current style is just a difference in how much benefit you can get from the NPC.

"Ahem...... rubbed hard to squeeze out the turbidity in his body, "Sister Queen, it's not that you don't help as a sister." As you know, my sister's team is understaffed first, and the latter is all passing adventurers. I'm afraid, I'm afraid that I helped the queen's sister today, and these knights will come back in the future......"

The kneading words were not completely finished, and she specially resorted to a small trick to get away with it. On the surface, he was embarrassed, but in fact, he told Zhu Zhu that if he wanted to completely solve the harassment of the Knights, he had to show more sincerity and rewards.

Moreover, the reward of helping to kill Zhao Yuxin is good, but who can guarantee that Zhao Yuxin will not die a lot? Zhao Yuxin's death at the hands of NPCs can prove the limitations of his work ability, but it is still not as good as the real equipment, skills, and props, and these rewards are affordable.

"My sister is really thoughtful!" Zhu Zhu looked very excited, "Actually, sister, I have designed a big plan early on. ”

Hearing the first half of the sentence, I couldn't help but praise Zhu Zhu in my heart. When I heard the second half of the sentence again, I couldn't help but ask, "What kind of plan is it?" ”

Queen Zhu smiled confidently and said, "Don't hide it from my sister, this Sun City is just the current capital of my Jing human race. In fact, we had plans to move the capital early on. Eventually, we will move to the vicinity of the territory of the Yu Republic and accept the protection of the Yu Min. It would be great if my sister could repel the attack of the Knights and protect us from reaching the territory of the Kingdom of Yu. ”

"This ......" rubbing is really difficult this time.

It doesn't seem to be the same conversation in Harajuku just now, wasn't the part of the transaction that repelled the Knights and relieved the siege of Sun City after that? Why are you chatting and chatting, and the reward is not talked about much, but about a task to escort the migration?

Zhu Zhu quickly saw the true intention behind the kneading embarrassment, and he immediately added the price code and said: "Sister rest assured, as long as you complete this task, your sister will not treat her sister badly." ”

Rubbing his eyes, he couldn't hide his joy, and asked, "I don't know ......."

"This is not the place to talk, let's go back to Harajuku!" Kneading a sentence had just begun, and was interrupted by the bamboo stick.

The group left the lake biogas factory and washed their shoes before returning to Harajuku.

By this time, a few people finally understood why everyone except for the bamboo had to take off their shoes before entering Harajuku.

If you think about the environment of a biogas plant, you can understand her "little cleanliness habit" of not wanting anyone other than herself to stain her carpet at all.

"Sister, I heard that you once asked Zhu Zhu for a thousand units of biogas fuel?" Kneading is still out of his mind, and Zhu Zhu has already begun to try to give conditions.

"I'm ......," he said, rubbing his mouth to explain.

"It's okay!" Zhu Zhu interrupted and rubbed, "Actually, as long as I complete the migration plan of my Jingren clan, not to mention a thousand units of biogas fuel, the sister of the biogas factory just now can be the master and give it to my sister." ”

Rubbing his eyes, he was a little straight, and he didn't know how to answer for a while.

Zhu Zhu smiled and continued to seduce: "There, but even if you don't do anything, you can produce nearly 100 units of biogas fuel per day!" ”

"It's done!" Rubbing his teeth, he gritted his teeth and said, "Sister, stay here for a while, and my sister will go out and crush these knights' offal!" ”

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