Citi, who wanted to prove its strength, thought it would regain Zeng Jin’s prestige in the robot competition, but never expected that it would become someone else’s wedding dress, but Citi was hit once again.

Disappointed, various countries have increased the research and development of robots. As a result, there is no time to deal with the affairs of Xingyue Nation. Zhang Yu, who knows nothing about this, constantly urges Shi Xi and the others to speed up the progress. .

In the underground construction site, Xu Bo has completed the construction of the double-floor-like foundation. Xu Bo, who was free, joined Zhang Yu's engine assembly work. Unfortunately, there are too many parts for the anti-gravity engine, and Xu Bo can't remember them all.

After teaching it several times, he found that Zhang Yu, who Xu Bo still doesn't know how, said helplessly: "You go to Mei Xue to fight."

"Yes". Xu Bo replied with a stern reply.

On the ground, Shi Xi looked at the steel frame of the city in the sky, feeling full of accomplishment. The greenhouse covering a small city was the first case in the world and could be included in the annals of history, but these are not important.

Shi Xi quickly dialed Zhang Yu's phone and shouted: "Teacher, I'm done, and the greenhouse is built."

"Very well, come and help at the underground construction site." Zhang Yu hung up after speaking.

"what the hell". Shi Xi's face was full of unhappy, as she thought she would hear the teacher's compliments to her.

Shi Xi, who was unhappy, walked towards the underground construction site and wondered if she was too relaxed. After spending so long with Zhang Yu, she had nothing to do except for learning knowledge.

Even the phytotoxin developed by Zeng Jin was developed with the experimental materials purified by Zhang Yu. In this way, the phytotoxin is equivalent to that developed by Zhang Yu. Thinking of these, Shi Xi is not reconciled.

"boom".

"Damn". Shi Xi, who was advancing, and Mei Xue, who was working, cried out in pain at the same time.

Mei Xue said depressed: "Sister Shi Xi, what are you doing against me?"

"I didn't see it, haha". Shi Xi smiled embarrassedly.

Zhang Yu, who was assembling the core parts, saw Shi Xi coming, and ordered: "Start working when you come."

"Yes". Shi Xi responded.

With the efforts of everyone, 10 anti-gravity engines and 3 positive ion engines were assembled in the mezzanine foundation, and 7 positive ion engines were installed on the foundation of the city edge, allowing the city fortress to move forward in space. .

Each engine is twice the size of a spacecraft. With such a huge volume, the gravitational waves produced are amazing energy, which can send billions of tons of weight to the sky, and 10 engines are tens of billions of tons.

The fort has been completed so far. The huge urban fort in the shape of a flying saucer, except for the glass and steel frame above the city, the other shell parts are all made of alloy, even if it hits a meteorite.

Zhang Yu, who returned to the headquarters laboratory, arranged for everyone: "The basic framework of the fort has been completed, and we are about to start the move. Xu Bo, you go and take down all the things in the factory in secret."

"Yes". Xu Bo responded.

"Shi Xi, stop the business and clear the money." Zhang Yu said.

"Good teacher". Shi Xi replied.

"Mei Xue, go and prepare, just say that we are going to celebrate and call back all the citizens of Xingyue Country outside." Zhang Yu said.

"Want to really prepare something to celebrate". Mei Xue asked.

"Of course, otherwise others will doubt it." Zhang Yu exhorted.

"Yes". Mei Xue answered.

On the official website of Xingyue Country, Mei Xue released an update that attracted the attention of the whole world, especially the citizens of Xingyue Country who traveled in various countries, canceled activities one after another, and rushed back to Xingyue Country.

[Seven days later, the Xingyue Congress will hold a celebration that only citizens of Xingyue Country can participate in. Please see all the citizens of Xingyue Country who have seen the news, return to Xingyue Country, and please leave travelers who are not citizens of Xingyue Country. ].

In the romantic capital of Fa Country, the family of Tian Wei, a citizen of Xingyue Country, just arrived here, they saw the official website news and were discussing whether to go back. .

Tian Wei thought for a while and suggested: "It's better to go back. It's rare for His Majesty Zhang Yu to hold an event. This is the first time in many years. It has not even been held during Chinese New Year or holidays."

Tian Wei's family replied.

"also".

"Then go back."

"---".

Tian Wei yelled urgently: "I'll book a ticket right away."

In Odalia, Xu Wei, a citizen of Xingyue Nation who was watching kangaroos, was constantly taking pictures, and was suddenly awakened by the ringing of the phone. After being impatient, he answered the phone and asked: "What's the matter, hurry up and say, I'm busy."

"His Majesty Zhang Yu wants to hold an event, come back quickly." Xu Wei's friend shouted.

"Just hold it, it's my business." Xu Wei said casually.

"Really not coming back." Asked Xu Wei's friend.

"No return". Xu Wei firmly said that for Xu Wei, there is nothing to participate in the event, and it is not that he has not participated in the event.

"It's up to you". Xu Wei's friend did not persuade him.

It is a pity that after a few days, Xu Wei's intestines are regretful, and he can't wait to slap himself to death, because at that time, he couldn't go back to Xingyue Nation. All of Xingyue Nation moved to the moon.

Among the organizations of Germany, Geely, Citi, etc., most of the citizens of Xingyue Country who received the news returned to China by plane. Only a small number of people did not want to go back so quickly and missed the most important destiny in their lives. .

The merchants that cooperated with Xingyue Nation suddenly realized that their cooperation had been terminated, and they panicked, thinking that they had done something wrong, and quickly went to Xingyue Nation to see if there was a chance to re-cooperate.

In the lobby of the Ministry of Commerce, businessmen from all over the world asked enthusiastically.

"Why should we terminate cooperation? Did we do something wrong?"

"Yes, how can I stop it?"

"If it is a profit problem, we can make a profit."

"---".

The Minister of Commerce Feng Xue didn't know the actual situation, so she could only comfort her: "After seven days, we will wait for the celebration of the Star-Moon Country to end. Let's talk about cooperation. Now Star-Moon Country is very busy and we can only terminate all cooperation first.

Although no one believed such an explanation, the merchants thought that Xingyue Kingdom would really cooperate again in seven days with Jiao Qing in their hearts, and they reluctantly left.

Businessmen from various countries who returned to the hotel gathered together and talked.

"What is Xingyue Nation doing? I really don't understand."

"Yes, isn't it just a celebration, why should we terminate cooperation?"

"It doesn't matter, come back in seven days."

"That's right, it's all about Xingyue Nation if it doesn't cooperate anyway."

"Let's go".

"---".

In the outer circle of Xingyue Nation, all the factories stopped operating, and all the machinery and equipment were dismantled by Xu Bo, loaded and transported back to the material warehouse of the headquarters. There was only one shell left in the factory, and there was nothing inside.

Most of the animals in the farm on the edge of the city have been transferred to the zoo. As for the neon dinosaur paradise, all the neon people of Zeng and Jin, except for the citizens of Xingyue Country, have been abandoned by Zhang Yu.

The various abnormal actions of the Xingyue Nation confuses all countries, and all kinds of strange news gathered at the bosses of the countries. Obamar frowned, and she couldn't think of the significance of Xingyue Nation's doing this.

"Strange, too strange". Obamar said very troubledly.

The think tank couldn't draw a conclusion from the analysis, and guessed: "Could it be Dr. Zhang Yu who made these strange behaviors only after changing the national policy."

"It's not impossible, but forget it, let's build the Philippine land first, let's talk about it." Obamar didn't think much, and ordered.

"Ok". The assistant did not respond.

In the polar bear country, Milovich's boss murmured tangledly: "I really don't understand Zhang Yu more and more."

In Geely country, the empress thought intently: "Stop commercial activities and call people back to Xingyue Country. Is it because Zhang Yu wants to shrink and implement a closed-door policy".

"Strange". The BOSS of Deguo, Faguo, etc. sighed and thought.

In the Philippines, construction workers from all over the world are constantly changing everything here, and the progress of the construction here has caused many countries to invest a lot of energy in it, and there is no time for him to take care of it. Therefore, all countries have given up tracking Zhang Yu's strange behavior.

The tourists from Xingyue Country were very depressed and left by plane. Those who wanted to come were even refunded. The travellers from all over the world wanted to see the excitement, and they were all overwhelmed by posting a complaint against Zhang Yudao.

"Dr. Zhang Yu, why can't we go to Xingyue Country to watch the excitement".

"That's right, Dr. Zhang Yu, you are too partial, we are also your fans."

"I don't know what the celebration of Xingyue Kingdom is like, I really want to see it."

"This is discrimination, and we have to treat it fairly."

"Yes".

"---".

Zhang Yu ignored the noisy internet, because Zhang Yu is very busy now. After the glaze elements are purified, Zhang Yu makes a super large fusion reactor to maintain the power source of the city fortress.

The glaze elements that Xingyue Nation can collect are all used up by Zhang Yu. They are only enough to support the one-time flight of the anti-gravity engine. However, as long as the moon is reached, the energy problem is no longer a problem, because there is a lot of helium on the moon. 3.

For every ton of helium 3 extracted from the lunar soil, 6,300 tons of hydrogen, 70 tons of nitrogen and 1,600 tons of carbon can be obtained. Helium fusion using deuterium and helium 3 can be used as energy for nuclear power plants. This fusion does not produce neutrons and is safe. Pollution is a fusion reaction that is easy to control.

But before that, Zhang Yu must ensure that the city fortress can safely reach the moon, otherwise all this will become a joke, and to ensure safety, Zhang Yu even installed electromagnetic protection devices throughout the fortress.

The glass shelves above the city are the most important ones, because they are the easiest to be crushed by the atmospheric pressure and the huge pressure difference.

"Finally finished". Wiping off the sweat from his forehead, Zhang Yuru said with relief.

The city fortress is completed. As long as you wait for the time to come, you can fly away from the earth for the first time. When countries want to stop it, it is useless. After all, in space, the weapons of all countries are not easy to use. ,, .. The latest chapter address of the city’s technological empire: https://www.ltnovel.com/book/103360.htmlReading the full text of the city’s technological empire: https://www.ltnovel.com/read/103360/The city’s technological empire txt download address: https://www.ltnovel.com/down/103360.htmlThe city’s technological empire mobile phone reading: https://m.ltnovel.com/read/103360/For the convenience of reading next time, you can click \"Favorites\" below to record the reading record of this time (Chapter 539 Withdrawing), and you can see it next time you open the bookshelf ! If you like "Technology Empire in the City", please recommend this book to your friends (QQ, blog, WeChat, etc.), Thank you for your support! ! (www.ltnovel.com)

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