Su Han looked at the rockets and asked, "By the way, what kind of fuel do these rockets use? Liquid fuel or solid fuel?"
The head of the rocket manufacturing base replied, "The other rockets use liquid fuel. This largest rocket uses solid fuel."
Su Han said, "Solid fuel. That means gunpowder, then."
"Exactly, gunpowder."
"I once heard that the flames inside rockets are carved with artificial gunpowder carving techniques. Have these rockets used artificial gunpowder carving?"
To his surprise, the head of the rocket manufacturing base looked confused and said, "Artificial gunpowder carving? That method has long been obsolete. After all, it's too dangerous. One wrong move and someone could be sacrificed. This kind of artificial gunpowder carving is a dangerous practice. That's why the Dragon Country's rocket development abandoned this method early on. I wonder why Deputy Minister Su Han is asking about this?"
"Hehehe," Su Han just laughed it off. So, it turns out there are no such dangerous incidents of artificial gunpowder carving in the Dragon Country.
Su Han said, "I only saw it mentioned in some old books. It seems the content in those old books is fabricated. Then what method does the Dragon Country use to arrange the gunpowder now?"
The head of the rocket manufacturing base replied, "The gunpowder in the rockets is 3D printed. It also has patterns. These patterns ensure that each part of the rocket's combustion provides different thrust. It is precisely the mature application of our Dragon Country's aerospace 3D printing technology that has enabled the production of these solid-fuel rockets."
As they spoke, the head of the rocket manufacturing base led Su Han to a corner of the warehouse. On the floor there, a red rectangular box had already been drawn. This box was identical to the one Su Han had seen at the South District base last time.
The head of the rocket manufacturing base said, "Deputy Minister Su Han, please set up the portal here."
At this moment, a group of researchers from the Ministry of Aerospace stood nearby.
These researchers were still somewhat skeptical about the legendary portal. They focused their attention on the red lines drawn on the floor forming a rectangle. Next, the portal that transcends modern Blue Star science was supposed to appear there. They were filled with curiosity.
Su Han checked the time and said, "The scheduled time is 12 o'clock. It's not yet time. We'll have to wait a bit longer."
The researchers eager to see the portal felt a pang of disappointment. What a drag, having to wait until 12 o'clock to set up the portal.
The head of the rocket manufacturing base said, "Indeed. Well, Deputy Minister Su Han, I have some tea. Shall we have some together?"
Su Han asked, "Oh. What kind of tea is it?"
"Just some ordinary Longjing tea bought online."
There was still an hour until 12 o'clock. Having lunch now might waste too much time. So, the head of the rocket manufacturing base wanted to invite Su Han for tea.
The head of the rocket manufacturing base had heard from his old friends that Su Han liked to drink tea, which was why he invited Su Han for tea.
Su Han followed the head of the rocket manufacturing base into a conference room.
In the conference room, the head of the rocket manufacturing base personally brewed tea for Su Han.
Su Han picked up the teacup and took a small sip. The tea was quite good, with a rich aroma.
"Mmm, this Longjing tea tastes pretty good. It seems the tea you bought online is quite nice. This kind of tea looks like it cost several thousand yuan."
The head of the rocket manufacturing base said, "No, no, this is just ordinary first-grade tea. The top-grade teas cost several thousand or even tens of thousands of yuan."
"I see," Su Han thought to himself: So these teas are graded. I should make a note of that. But why do they all invite me for tea in the Dragon Country? Can't they offer something else? Oh well, when in Rome, do as the Romans do.
Su Han actually didn't know much about tea.
Time quickly passed until 12 o'clock.
Su Han returned to the vicinity of the red rectangular box.
Under the curious gazes of the researchers nearby, Su Han waved his hand, and within the red rectangle, the portal finally appeared.
The researchers erupted in a clamor, "It appeared. Is that the portal?"
"That's amazing."
"Incredible."
"This kind of portal is beyond what our current science can research."
"..."
The head of the rocket manufacturing base said, "Alright, no more amazement. Hurry up and transport these rockets over. The portal won't be here for long."
The researchers and movers began to transport the modular flames and satellites towards the portal.
Seeing his subordinates start to move, the head of the rocket manufacturing base nodded with satisfaction, then turned to Su Han and said, "Deputy Minister Su Han, it's lunchtime now. Let's go and have lunch."
The head of the rocket manufacturing base led Su Han to the rocket manufacturing base's mess hall.
The head of the rocket manufacturing base said, "Deputy Minister Su Han, thanks to you, our base can finally have some meat to eat. We have meat for lunch today."
Su Han asked, "Meat? Is it crocodile meat that's actually dinosaur meat?"
The head of the rocket manufacturing base quickly laughed, "Look at my memory. How could I forget? Deputy Minister Su Han, you eat dinosaur meat every day. The dinosaur dishes at our base are like showing off in front of an expert. But, I actually know that, so today's menu specially includes beef. You know, this is beef! Even though it's frozen beef, you probably haven't eaten this kind of beef in a long time, Deputy Minister Su Han."
Su Han thought for a moment. As for beef, he had eaten wild ox meat in the magic world. In that case, he couldn't really say he hadn't eaten beef in a long time.
"Well, thank you for your kind hospitality, Director."
Su Han decided not to reveal that he had recently eaten wild beef. After all, if he did, it would embarrass the head of the rocket manufacturing base.
The head of the rocket manufacturing base directly led Su Han to a round table enclosed by screens.
Several dishes were already placed on the round table. The dish in the center was stir-fried beef. The other dishes were various fruits and vegetables.