Because Xiao Jiu didn't know what the runes of the Demon Breaking Talisman looked like, the machine it displayed with the stereo imager at this time was not used to automatically produce the Demon Breaking Bullet, but the one designed for Lao Liu Tou and the others to make magic weapons before.

In the stereo imager, the forged sword embryos are placed into the inlet end of the machine, where they are forged by a die at the inlet end and sharpened into short swords of the same size, which are then transported to the next processing step by conveyor belt......

Although each production step seems very simple, it is easy to understand what this step is used for and why it has this effect. However, when all these production steps are taken together, it is enough to cause a great psychological impact on the viewer.

Yes, it's easy to understand how this machine works, and it's not even difficult to copy the same machine. However, it is very difficult for people to think for themselves and build such a machine out of thin air!

"Ingenious!" the Great Elder exclaimed, "Old Dragon, I have lived for so many years, and it is the first time I have seen such a miraculous machine in the world! Not only can it replace manpower to continuously produce the desired things, but also the things that are manufactured will undoubtedly be exactly the same in size, shape, and so on because they are processed by the same machine and processed by the same process! Amazing, amazing!"

"Bah, you've lived for so many years...... It's to search through the thousands of years of family history of our dragon clan, but who has ever seen such a magical machine?!" Youlan looked at the Great Elder with disdain.

The Great Elder was dumbfounded by Youlan's question, and then sneered, "No, never before!"

The second elder on the side also looked at the continuously working machine in the stereo imager with admiration, and there seemed to be some kind of strange light flashing in the cloudy old eyes. However, after the initial shock and admiration, doubts and confusion followed.

"He Gongzi, although a machine like yours looks amazing, it would be good if it could really run continuously like this. However, have you ever considered how big a magic circle is needed to keep this machine running, and how many spirit stones need to be consumed?!" the third elder asked.

Although because the shock caused by the machine in the stereoscopic image had not yet subsided, the three elders involuntarily used the title He Gongzi when they talked to He Wei. However, the tone of the three elders did not sound friendly, and contained slow questioning!

However, unfriendliness is not friendly, but the questions raised by the three elders are really precise and to the point! Because, no matter how magical a machine is, it will only be useful when it is really running. If it can't run on its own, then what's the difference between it and a pile of broken copper and iron? Moreover, the purpose of He Wei and Xiao Jiu to show this kind of machine is obviously to reflect the convenience of this kind of machine, as well as the efficiency and economy in the production of demon-breaking bullets.

Now, Youlan and the elders have seen the convenience and efficiency of this kind of machine from the stereo imager, but whether it can achieve the effect of saving money is still uncertain for the time being! If this kind of machine is running, it needs a super large magic circle, and consumes a large amount of spirit crystal spirit stones to power it. Even after calculating, the consumption of one spirit crystal is only enough to make dozens or even a few demon-breaking bullets, so no matter how convenient and fast this kind of machine is, there is no need to use it!

"Actually...... It doesn't have to be a magic circle to power the machine, and it is okay if you use human power to propel the machine to work. It may take a lot of manpower, but when converted, compared to making a handmade demon-breaking bullet, the efficiency will still be much improved!" the second elder pondered.

"Use manpower...... That's a lot more people needed......" The Great Elder was also deep in thought, trying to find a way to power such a machine without requiring either a lot of manpower or a lot of spirit crystals.

"Ahem, in terms of motivation, the elders don't need to worry. He Wei coughed lightly, interrupting the contemplation of several elders, and then said softly, "We have built a machine called the internal combustion engine, which can provide a large amount of stable power to other machines as long as a very small amount of essential oil is consumed. ”

With He worried's words, Xiao Jiu changed the image in the stereo imager and replaced it with an internal combustion engine. And with the method of layer-by-layer analysis, the structure and working principle of the internal combustion engine are gradually presented in front of Youlan and the three elders.

"Good! good!"

"Wonderful, wonderful, wonderful!"

Aside from the words good and wonderful, the Great Elder and Second Elder honestly couldn't find any other way to describe what they were seeing in front of them! Transporting a certain amount of essential oil into a fixed, confined space and setting it on fire. The massive impact of the essential oil, when ignited, is then used to push the metal block above the confined space. The back of the metal block is linked to this metal rod.

The quintessence of this metal rod is the best part!

When the essential oil is ignited, the power provided to the metal block and the metal rod is vertically upward, but after the metal rod and the disc connected to it are transformed, it turns into a rotating force!

As long as there are enough essential oils, as long as the essential oils can continue to enter the confined space to burn, then the machine can keep running and continue to provide stable and continuous power for the outside world!

"In this way, the matter of powering the machine will be solved, and then, we only need to build a few more such machines, and we will be able to equip all our fellow clansmen with a submachine gun with a sufficient number of demon-breaking bullets! At this time, it seems to have completely forgotten its previous discrimination against He Wei, and who gave it all these things that excited it!

"yes. Wulong, hum! When each of our fellow Dragons of the Heartless Mountain Dragon Clan can be equipped with a submachine gun, I want to see who is the Wurm between us and them!"

Although the three elders did not show a hideous expression like Yu Lan. But He Wei noticed that when Youlan mentioned the word wulong, the faces of the three of them also became very ugly!