The huge fortress sits in the space, and in front of it is a curved strip of space half a light-year wide.

The huge fortress occupies a strip of curved space, blocking all space.

On both sides of the strip-shaped curved space, there is a gray space. But from a distance, you can't see it at all, they appear very calm, still and terrifying, as if there is not the slightest particle fluctuation.

On either side of the curved space, there are two giant black holes that are very stable. The reason why the strip space is curved is because of the spatial stability of these two giant black holes.

That's right, this is the Shuangdan Fortress that the Yanhuang Empire spent a lot of money to build with the mobilization of the whole country.

"Shuangdan Fortress, it should be a Twin Egg or a Twin Hole Fortress, and it is not named after these two giant black holes."

Bi Ye finished the work in his hand and said with a smile.

"It's better to listen to Shuangdan." The head of the fortress, the commander of the Privy Council, Gundam, said with a smile.

"Thank you for your hard work, the Royal Academy of Sciences is responsible for helping us debug the cannon, and now the cannon's debugging is complete. We're about to activate the weapon system of the Double Dan Fortress.

After we successfully activated, we were well prepared to meet the attack of the Yuanji civilization.

Now I just don't know if the energy reserves are enough, and there is no source energy to support it.

Let's not talk about counterattacking the Yuanji civilization, it is very difficult to maintain the safety of the fortress. ”

"Be content, there is an active energy reactor in the Shuangdan Fortress now. At its limit, the empire can also take out 90% of its source energy reserves to support the Shuangdan Fortress.

If this can't resist the attack of the Yuanji civilization, then we really have no choice. Bi Ye said with emotion.

"I'm just worried that after our simulation of the combat power based on the big fireball, we still have hope of holding the Shuangdan Fortress.

After all, if the Yuanji Civilization wants to attack us, they must be interfered with by two giant black holes, and they are limited by the passage, so they cannot concentrate all their forces to interfere with us. Gundam said in a solemn tone.

"Report, the weapon system is ready." The weapons adjutant immediately reported.

"Then activate the weapon system, who knows when the Yuanji civilization will arrive." Gundam named.

"The energy system is prepared and the source energy reactor is connected to the grid."

"The source energy reactor is normal, and the source energy transmission begins."

The massive source-energy reactor at the Shuangdan Fortress was activated, and while the energy was stored through the energy storage device, the remaining energy source was used to supply the weapon system.

This is a source-energy reactor built specifically for weapons systems.

The Aerial Cannon requires a huge amount of energy to sustain when it is activated and when it is fired. The power of the energy reactor is simply not enough.

However, they require very little energy for maintenance. Fortunately, the source energy can be compressed and stored.

"The source energy storage has reached a minimum value, and the weapon system pre-activation is requested."

"Permission to activate the weapons system."

With a command, Gundam's Wisdom and Talisman were double-authenticated, and the weapon system of Shuangdan Fortress began to charge.

"The order is confirmed, and the D-shaped air cannon is activated."

"The source energy is fully distributed. The D-type air cannon is being activated. ”

"Warning, everyone stay away from the fortress."

"Warning, everyone stay away from the fortress."

"Warning, everyone stay away from the fortress."

Three warnings in a row, showing that when the cannons are activated, they will cause some danger.

Dense muzzles of D-shaped cannons began to protrude from all sides of the fortress. On average, there is one every 10,000 square kilometers.

"The D-shaped air cannon is activating."

The D-shaped air cannon spews out its own unique film, and each individual film easily blends together to form a single unit.

This way they are more powerful and can attack most of the energy and particles.

The D-shaped air cannon in front of the Shuangdan Fortress is more dense.

This is to be able to stop the D-type anti-air cannon in time, and to replace it with other types of anti-aircraft guns and other types of shells. Leave a path for emission.

"The D-shaped air cannon was successfully activated, and the Shuangdan Fortress achieved a perfect defensive posture."

"Start activating the Type B Air Cannon."

Inside the fortress there are many small squares, like a chessboard of Go.

They began to emit a fierce glow, and soon there was also a pair of contrasting lights in the curved space in front of the Shuangdan Fortress.

It's just that the light on the curved space of the strip is tens of thousands of times the size of the small grid of the Shuangdan Fortress.

"The B air cannon has been successfully activated, and the positioning of each B air gun is underway."

The people in the hall were quiet, all waiting for the orientation to end.

"The positioning of the Type B air cannon was successful."

The B air cannon is equivalent to the effect of a mine, and it is best suited for determining spatial coordinates in advance. It is used as a reusable mine-type weapon.

"The A-type air cannon is starting to prepare."

The huge spiral-shaped pipes inside the Twin Dan Fortress began to glow.

There are a total of 12 spiral pipes, all of which are 1.2 million kilometers in diameter.

The total length of the pipeline is 560,000 kilometers.

It takes a long time for the source energy to fill every pipe.

"The A-type air cannon was successfully activated."

Bi Ye watched the successful activation of the Type A Sky Cannon, and he smiled: "I have improved the Type A Sky Cannon very well."

Now the A-type air cannon has changed the characteristics of a long preparation time. He can fire constantly.

It can be prepared as it happens, and as long as there are no problems with the source energy, it can be launched indefinitely. ”

"It's all good, every type of cannon. It's just that the wear and tear of the equipment is a bit large. Gundam said with emotion.

"That model is durable, I want to be practical, I want to be durable. This is completely impossible. We just can't do it. Bi Ye shook his head and said.

"I remember the C-type cannon, it was solid and durable. It's good that you're all like that. Gundam said with a smile.

"The C-type air cannon has no physical body, how can it not be durable.

The power is good, but the range of use is too narrow to be practical.

It must walk in an absolute straight line, and how can an absolute straight line be located at a distance in the universe.

This is completely a weapon of the light-year process, do you still want to fight with the Yuanji civilization?

If you go out, you won't be able to come back, and the dragon-class battleship we worked so hard to build is not for this purpose. Bi Ye said with emotion.

"Our military is not useless either, some improvements have been made." Gundam said with a smile.

"The C-type air cannon is starting to start."

Closest to the front of the Shuangdan Fortress, a large-scale composite energy force field composed of energy force fields emerged.

At the very front of this energy field, it is like a lens. In front of this lens, there is a large aperture of light, and if you look closely, it is the door of space.

"The weapon system was successfully activated, and the Shuangdan Fortress entered combat readiness."

Bi Ye exclaimed: "There are ideas, you really have ideas."

"Thank you for the compliment, your Royal Academy of Sciences is really powerful." Gundam happily approved.