Zhao Yu did not forget that he only used technology points to build one of his Star Destroyer Cannons. The remaining parts that can be mass-produced require material resources that exist in reality.
On the moon, these resources are most lacking.
In addition to the Star Destroyer Cannon, there are many places that require material resources.
For example, deuterium is needed for second-generation nuclear power plants.
The existing deuterium on the moon that he obtained was only enough for three years.
Zhao Yu thought for a while and walked out of the base control room.
Where the butler could see it, he asked: "Uncle Da, what material resources do we lack now?"
"There are many resources that are lacking. Laser weapons, superconducting materials, orbital guidance devices, energy storage, magnetic resonance, etc. all require rare earth resources..."
Zhao Yu felt his head was heavy and said helplessly: "How many species do we lack?"
"Basically all types of rare earth metals are in short supply. It is best to find raw ores to facilitate our processing, such as bastnasite, bastnasite, xenotime..."
"I understand, needless to say, there is a lot missing!"
Zhao Yu interrupted directly: "Make a list for me. Mark clearly how much of each item is missing..."
"Sir, the more of these resources the better, there is no shortage of them."
"..."
Zhao Yu was stunned for two seconds, sighed, and said: "I understand, you first list the resources needed for the Star Destroyer Cannon, as well as the resources to build the spaceship next..."
"Sir, are you planning to seize the earth? It should have been done long ago. I'm going to draw up a battle plan now..." Uncle Da's voice sounded a little excited.
"Stop, no war, trade, just trade!" Zhao Yu was speechless. He didn't see it before. Since the three astronauts appeared, he discovered Uncle Da's bellicosity factor.
"How can a lion trade with a hyena?!" Uncle Da was very angry.
"Can we destroy the earth now?!" Zhao Yu asked.
It was rare that Uncle Da did not answer immediately. After more than ten seconds of silence, he said: "According to calculations, we can at least eliminate more than half of their population. The information is still too little. If we can monitor the situation on the earth, we should
It can be calculated more accurately..."
"Well, after you are sure that you can destroy the earth, you will bring this up again. I don't want to be regarded as a villain by the people on earth. Death squads come up to kill me every day..." Zhao Yu spread his hands and said casually.
"Okay, let's talk about destroying the earth later. You have to finish the things on the list first. You have to eat the food one bite at a time and walk the road step by step!"
After sending Uncle Da away, Zhao Yu was a little confused again.
Looking at the watch on his hand, he felt very uneasy.
"Is this thing enough to replace so many things?!"
For a watch that can project touch, in exchange for so many rare earths and rare metals required for high-end technology, will the upper echelons of the earth trade it?
"It's a bit inappropriate to talk directly about the transaction. When we first met, it seemed that I was very urgent and wanted to ask for them..."
"Is there any way to make them want to trade with me?!!"
Suddenly, Zhao Yu thought of a possibility.
In his base, there are still three earthlings living.
In these days, Zhang Yixia chatted with the three people frequently, and naturally got to know each other a lot, including the projection touch watch.
After a while, Zhao Yu had an idea in his mind.
If it can be realized, he will exchange the maximum benefit at the minimum cost.
……
"Brother Tao, that sister Xia really doesn't seem to understand the earth. Do you think aliens have just arrived on the moon?" After many days of getting along, Liu Ning has some feelings for Zhang Yixia, and she feels that she is very sincere.
.
"Impossible!"
Zhang Tao shook his head and said: "This lunar base has 180 floors. This is just what we saw. What we didn't see may be how big it is. How can such a large base be completed in a short time?!
”
"Aliens definitely know us very well, otherwise everything we see, including architectural styles, languages, etc., would not be almost the same as on Earth..."
Wang Dongdong smiled and said: "Liu Ning, don't be bewitched by aliens..."
"No way, you haven't seen what Sister Xia looks like these days. Does she look like a bad person?!"
"That's true..."
Wang Dongdong pondered for two seconds and said: "Perhaps, as we guessed before, Zhang Yixia is from the earth and was raised here by aliens. She doesn't know much information..."
In the past few days, no matter how they tried to talk, they couldn't get anything useful. It wasn't that Zhang Yixia didn't say anything, but that they felt that the other party really didn't know.
"I agree with this. Zhang Yixia really doesn't look like she's pretending, otherwise it would be too scary!" Zhang Tao nodded, and then said:
"What do you mean when you say that aliens have ignored us for so many days?"
Apart from sending Zhang Yixia over to deliver food and chat, there was basically no purpose. He neither tortured them nor abused them. On the contrary, he entertained them with delicious food and drinks, except not letting them run around.
After ten days, Zhang Tao felt that he had gained three pounds and had a double chin.
"Ding dong~!"
While they were talking, the doorbell rang, and the three of them fell silent and stopped talking.
Liu Ning quickly stood up and opened the door.
Outside the door, it was Zhang Yixia again, holding a plate of fruit in her hand.
"Fresh fruit, does anyone want to eat it?!"
Looking at Zhang Yixia's bright and sincere smile, the three of them couldn't believe that this kind of emotion could be faked.
"Thank you, Sister Xia..."
After eating and drinking for a while, Zhang Yixia did not leave as usual, which made several people a little curious.
"Sister Xia, don't you have to go back to report today?!"
Zhang Yixia glanced at the door mysteriously and said excitedly: "Ning Ning, you may be going back to Earth!!"
"What?!"
The three of them were shocked and quickly asked about the situation.
"Just this morning, our supervisor sent out a form asking everyone who wants to go to Earth to sign up and take the assessment..."
Zhang Yixia's eyes flashed brightly, and she said excitedly: "I have also signed up. If I pass the exam, I will be able to go to the earth and see those delicious food and beautiful scenery you mentioned..."
The three of them looked at each other and Zhang Tao asked in a deep voice: "Then your supervisor, did you say when you will let us go back?!"
Zhang Yixia nodded and said: "I asked the supervisor privately and listened to what he meant. It seems that the superiors have made some kind of decision..."
"What decision?!" Zhang Tao said hastily.
"I don't know!" Zhang Yixia shook her head and smiled: "But it is definitely a good decision. Listen to the supervisor. People from the maintenance department are already inspecting your White Rabbit No. 9. When the inspection is completed, you can go back..." "Ahem~~!"
After Zhang Tao heard this, he coughed twice and glanced at Liu Ning.
Liu Ning understood and immediately said: "Sister Xia, are all your leaders the same as us?!"
"That's definitely different!"
The three people's eyes widened.
"How can you be a leader and be as ordinary as us?!" Zhang Yixia said seriously.
"..."
Liu Ning was stunned for a moment, then continued: "I mean, do they look the same as us?!"
Zhang Yixia scratched her head, looked at the three of them with some confusion, and said: "They look different from us, what should they look like?"
As she said that, she slapped her head and said, "I almost forgot about business, give me your cell phone!"
Zhang Tao was a little wary, glanced at the fully charged mobile phone, and said: "What do you want our mobile phone to be?!"
Zhang Yixia raised the watch in her hand and said with a smile: "I told my supervisor that you are still using mobile phones, and he asked me to upgrade it for you..."
"Upgrade?!" The three of them were a little surprised. Could it be...
"Yes, it will be more convenient to upgrade to mine, and the battery life will be longer..."
Zhang Yixia smiled and said: "My watch only needs to be charged once every month or two, but you have to charge it in a day or two. It's so hard to use!"
This!
The three of them looked at each other and couldn't believe that such a high-tech product was just given to them?!
Is there any conspiracy?!
Zhang Tao said anxiously: "Your watches are very technical. Just give them to us like this. Aren't you afraid that we will analyze them?!"
"It's just a watch..." Zhang Yixia looked puzzled, as if she didn't understand why he cared so much.
Just as he was talking, his watch vibrated slightly, and there was signal access.
Zhang Yixia didn't care and pressed connect directly in front of the three people.
The holographic projection appeared, and Bajie changed from his previous wretched appearance and became full of majesty.
"Zhang Yixia, the spacecraft has been inspected and repaired, you can bring them here!"
"Okay, supervisor, we're coming over right now!"
Zhang Tao was horrified. Are the aliens really going to release them back to Earth?!