Items that can be exchanged in the summoning system, items in the original world of Yalin should only be limited to the degree of World War I in terms of science and technology. Items in different worlds should have everything!

There are heavy magic crystal guns, military giant air combat boats, including "Magic Knight", but why is that less?

"Sorry, master.

In a short silence, Yalin almost broke the cold wooden desk for office with a punch. I X‘ Panda are you playing with me? It was not easy to see that the dawn of hope was so strangled.

Yalin threw his head on the table, completely without the image of mystery and majesty. okay! Now that the nuclear program has run aground, how can we build enough deterrence? If there is no seal, it's OK to say that it's a big deal to lose your integrity and directly threaten to kill each other's cities. Anyway, if you can't fight, you'll run and pick weak civilians to kill each other. Unfortunately, he is now bound by the seal and can't even get out of the yanold mountains.

Nemo also quickly inquired in the system. When Yalin was almost about to put on a frustrated forward bending shape, a lot of searched data were placed in front of Yalin.

"Master, although the weapon cannot be exchanged directly according to the search, it can be set up by itself. There are corresponding materials and design drawings in the summoning system."

"Really?"

Yalin, who was already depressed, immediately checked the information searched by Nemo.

This strange world is mostly fought with cold weapons, but there is not no * * at all. For example, the magic crystal gun is a kind of * * similar to artillery, and its power and range far exceed some modern guns in Yalin's previous life. However, the magic crystal gun needs to consume a lot of magic crystal stone and magic, and its firing speed is very slow, which is not something that every country can afford to play. Even the Saxony Kingdom only arranged a few magic crystal cannons in belika fortress, and they were supported by other countries.

The reason why the * * in this world develops very little is probably because of the existence of magic. Many times, the lethality of magic is no less than that of modern weapons, so * * is naturally not necessary to develop. However, during the dragon war, the power of magic can no longer meet the needs of war. The requirement for weapons has also been raised from killing mortals to killing dragons and even gods! At that time, in order to reverse the war, the two clans of white dragon and black dragon jointly developed a terrorist weapon in the face of the giant dragon coalition, which had been dominated by green dragon and overwhelmed its own side in quantity. After purifying a large number of dark element ores, high concentration crystals are obtained. Based on the crystals of this high concentration dark element, the other five elements are fused, compressed and fused by the mutual repulsion of the elements themselves, and all burst out at the zero boundary point, The destructive force of the six elements mixed together and superimposed on each other is thousands of times that caused by any single element!

Only one can destroy everything hundreds of kilometers around. Even the five dragon gods dare not resist this weapon with their own strength!

In Yalin's view, it is like a different world version of nuclear weapons, but different from nuclear weapons, the explosion of such weapons will not produce nuclear radiation to pollute the surrounding environment, but will cause a far more terrible sequelae than nuclear radiation. During the dragon war, the white dragon and the black dragon did their best to produce only three, of which the least powerful one was used for detonating experiments, and the other two were sent to the battlefield. Only one black nuclear crystal was successfully detonated, which seriously damaged the Dragon coalition, while the other one could not be detonated due to some technical problems, so it had to be forcibly destroyed.

Yalin could also vaguely feel from the memory of the king of the white dragon that the shock wave formed by the huge explosion power would shift the city to the ground in an instant. Both humans and elves were directly turned into ashes under the frenzied extrusion of the six elements. Even the * * of the giant dragon could not bear this power. He was stripped off his scales bit by bit, separated his flesh and blood, and finally died.

And this different world version of the terrible nuclear weapon has also been named a terrible name by the enemy and US - Black nuclear crystal!!

When he read the word "black nuclear crystal", Yalin had an unspeakable feeling of anger and sadness. The core technology of compressing and fusing the six elements was actually not used in military at first, but only \

Yalin shook his head and excluded the distractions. In any case, these are the memories of the once king of the white dragon. He can't be affected by this. There are black core crystal design drawings in the summoning system. This is really unexpected good news. You know, at the end of the dragon war, when the white dragon and the black dragon are about to lose, in order to prevent various technologies from falling into the hands of the green dragon, A large number of materials and drawings were destroyed. As the most important black nuclear crystal, it naturally received special attention. Not only the drawings were completely destroyed, but also the refining factory was completely blown into ruins by magic. In addition, the manufacturing technology of black nuclear crystal was very complex, so it can be said that this weapon was completely lost.

There are many drawings exchanged from the summoning system, which are as thick as Yalin's knee. They are filled with dense words, magic experiment data, the combination and application of various arrays, calculation formulas, design drawings of mechanical parts, etc.

Yalin roughly looked at it. Although it's a headache to see so many drawings, it's really a complete black core crystal design.

However, before long, Yalin's expression was ugly again: "Nemo, I need you to help me calculate immediately how long it will take to produce a black core crystal with all the productivity and existing material energy of audur city."

"Please give me some time, master!" Nemo was ordered to work at full speed.

Even if there is a complete design drawing, the production period of black core crystal is very long. There are two most troublesome stages. The first is the extraction of dark element crystals with high concentration. During the extraction process, the dark element ore will diffuse the elements contained. In order to improve the extraction purity as much as possible, a large number of water gemstones are needed for neutralization, Among them, it must also be the cream crystal with the most abundant water element! During the dragon war, three frost crystals were needed to extract 50 grams of high concentration dark elements. If the other five elements were to be integrated, the high concentration dark element crystals as the main body needed at least 700 grams.

If you use the summoning system to exchange all materials, you need two frost crystals first, and each frost crystal needs 200 material energy, that is to say, in the first process, only frost crystallization needs 7600 material energy!

"170000 material energy!!!"

When Nemo reported the first data, Yalin almost didn't faint on the spot. This is the first kind of refined material. It actually requires so much material and energy. Many precious materials have to be exchanged in several subsequent processes. The price is really a little expensive.

by the way! Yalin remembered that when he accidentally met aleguso, the killing master, in the Saxony Kingdom, aleguso also looked for frost crystals from himself. He also doubted whether the killing master also wanted to make big killers. However, it seems that he is worried too much. As areguso said, 'only the rich dragon who doesn't know how to spend his money can afford this thing'!

"In fact, master, during the dragon war, although the two races jointly manufactured black nuclear crystals, because the manufacturing process of black nuclear crystals was very dangerous, the manufacturing factories and spell laboratories were established in other areas, and there are no supporting facilities in odur city now."

When Yalin felt very headache about this huge expense, Nemo cut Yalin impolitely. Yes! The second troublesome stage is the fusion process of the five elements and the main crystal. The six elements squeeze and fuse with each other. The fusion process requires at least 36 high-level mages to work at the same time to guide the superposition and fusion of elements. The failure of any mage may detonate the extremely unstable element power on the spot. There was an explosion accident during the dragon war, The main city of the black dragon clan in the lava zone was almost flattened by a fifth, and this was the damage caused by the explosion of incomplete fusion state in a large number of protective arrays. At that time, the black dragon king immediately issued an order to repair the new laboratory to an uninhabited area hundreds of kilometers away for fusion experiments.

The construction of new laboratories and refineries is another new expense. In the current situation, Yalin felt that he might have to sell the city of odur to build a black core crystal.

"Even if we tighten our belts, we will get the atomic bomb out!"

There is such a hot-blooded slogan in Yalin's memory in his previous life, but Yalin never dreamed that he would need to shout such a slogan one day. Soon Nemo finished searching all the data and handed it to Yalin. It is conservatively estimated that it will be two years for audur city to manufacture a black core crystal, and he still needs to stop most of the construction work to save material and energy, And only when the one-time fusion is successful in the manufacturing process of black core crystal.

For two years, the state of conservative estimation \\

Yalin covered his head and collapsed on the sofa, looking at the ceiling. For a time, Yalin was only upset. The novice protection period was only more than one year, and it couldn't be done in two years.

"Master! This is only a conservative estimate. If we can finish the drawing as soon as possible or speed up the refining speed, we may also reduce the manufacturing time." Nemo also saw what was worrying in Yalin's heart and quickly reminded him.

"Speed up the research progress."

Yalin lay on the sofa and thought for a while. For a moment, he seemed to have a clear idea. A carp stood up.

"Let sunezer come!"

Lin called a maid and said.