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    the five arrays are buoyancy array, cliff array, gathering spirit array, wind spirit array and hidden earthquake.


    Buoyancy array is to reduce the gravity of Xianzhou, while Fengling array is to accelerate Xianzhou, cliff array is to defend, hidden array is to hide, and gathering spirit array is to supply energy.


    Needless to say, these disciples are really inspired. This makes Xu Ziyan very interested in this fairy boat.


    But... Xu Ziyan always felt something was wrong. He sank a wisp of divine consciousness into the space of purple smoke and told the problem to the array. After three years, he has no shortage of materials, and now he is the top immortal craftsman in the late seven grades. Therefore, he immediately gave Xu Ziyan advice. When Xu Ziyan heard it, he was greatly impressed. Take back the divine consciousness and say to Xu Buhui:


    "I don''t understand. There is a limit to your method of superposition. At the end of the day, no matter how much you stack, it won''t reach the level of the eight immortals. "


    Xu Buhui muttered, "Holy Father, we don''t want to make this boat into an eight grade immortal vessel with the ability of our immortal array hall. As long as we can make it into a seven grade later stage, we will be satisfied."


    Xu Ziyan shook his head and said, "it''s very difficult. I''m afraid it can''t be reached even in the later stage of seven grades. Because no matter how many layers you stack, it''s still a surface. You should know a saying, it''s called "breaking the surface with points", and the more arrays you stack, the more unstable the array will become. If it exceeds a certain number of layers, I''m afraid it doesn''t need to be attacked. It will collapse itself. "


    Xu does not understand dull, Xu Ziyan also does not speak, just let Xu do not understand his thinking there. This is very important for an immortal array master.


    About two quarters of an hour later, Xu Buhui suddenly woke up and said dejectedly, "I want to understand. It''s really like what the emperor said. We''ve wasted our efforts. "


    One side of the refining hall is also dejected, but Xu Ziyan said with a smile: "there is no way.


    "What can I do?" All the people focus on Xu Ziyan.


    "I don''t understand. Your thinking should not be limited to the superposition of arrays. If you think about it this way, if you don''t stack the arrays one by one, but extend the arrays to form a solid."


    "Three dimensional?" Xu doesn''t know what he looks like.


    "So it is


    Xu Ziyan squatted down, picked up a branch, painted on the ground, and explained to him the knowledge of point, line, surface, stereogram and so on.


    When Xu Ziyan finished speaking, all the disciples of the immortal array hall looked at Xu Ziyan with the light of worship in their eyes. They suddenly turned back to Xu JieFei and said, "JieFei, this array has been abandoned. When we understand this three-dimensional array, we will portray it again."


    Words fall, a group of disciples of immortal array hall face don''t say hello, one by one left in a hurry, rushed back to understand what Xu Ziyan just said. That Xu does not understand is to walk while understanding, "Dong" a big tree will be broken, but did not know to continue to walk in the past.


    Xu Ziyan looked at the back of the disciples of the immortal array hall, and could not help nodding. They have this kind of spirit of study. No wonder the realm will be improved so fast. It seems that it is not only because of the inheritance and sufficient materials. As long as they can initially understand this three-dimensional array, they will be able to break through the realm of the immortal array master in the early days of the seven grades of Taoism.


    At that time, a few layers of three-dimensional array will be laid on top of the immortal boat to form a three-dimensional composite array. Coupled with the strength of the immortal boat itself, it will be able to reach the initial level of the eight grade immortal ware.


    Turning his head, he saw the disciples of the alchemy hall and the Zhifu hall, and then he asked with a smile, "what are you doing here? Did you also participate in the production of Xianzhou? "


    The leader of the alchemy hall, Xu Ruliu, came forward and said, "holy ancestor, not only our alchemy hall but also our Zhifu hall. Now it''s our four halls that jointly make this fairy boat."


    "Oh?" Xu Ziyan asked with interest, "I don''t know how your alchemy hall is involved. Ha ha... If the making of Rune hall is involved, it''s for making Rune cannon. I really don''t know what the alchemy hall can do?"


    Xu Yiliu said with pride: "we think that if it is a large-scale Xianzhou battle, each Xianzhou needs to gather the forces of heaven and earth to form a rune gun. It is likely that in a short period of time, the surrounding Xianyuan forces will be exhausted. At that time, the rune gun will lose its energy and become useless. Here we are ·· "


    speaking of this, Xu Yiliu pointed to the inner part of the immortal boat and said:" our alchemy hall invented a kind of pill called Yuanli pill. This pill belongs to low-grade immortal pill. It only encapsulates the heaven and earth Yuanli in it. It has no great effect on the cultivation of monks, but it can release Xianyuan force quickly to provide energy for rune cannons Source. We set up a circle of small holes around the rune gun to put yuanlidan in it, which can provide energy for the rune gun at any time. "Xu Shicheng, the leader of the Zhifu hall beside him, said in distress: "Shengzu, only our Zhifu hall has no breakthrough. It just depicts Rune patterns on the immortal boat. These Rune patterns will gather the immortal force to form a rune cannon. But there was no improvement. "


    Xu Ziyan listened to their explanation, opened Kun Peng''s eyes and looked at it, but he could not help nodding to himself. It''s just the way that the four halls came up with that is enough to upgrade the rank of the immortal boat to the later stage of the seventh grade. It seems that they really use their brains. He closed his eyes slightly, thinking about how to improve the fairy boat. As soon as I think of the cannon in my previous life, I have an idea in my heart. He sank the divine consciousness into the purple smoke space, called Qi 1, Qi 2, Dan 1, Dan 2, array 1 and Fu 1 together, and discussed with them.


    All the friars around held their breath and quietly went to the purple smoke. About an hour later, Xu Ziyan opened his eyes, reached for Xu JieFei, Xu Wuliu and Xu Shicheng, pointed to the immortal boat and said to Xu JieFei: "JieFei, let''s refine the immortal boat again. Your forging of these materials has reached your current limit, but there is still room for improvement in refining in a short time. "


    Xu JieFei eyes a bright way: "how to improve?"


    Xu Ziyan said with a smile: "refining utensils is not to put the best things together to produce the strongest immortal utensils. All kinds of materials need an optimal ratio. Your refining hall takes this as a research direction. Refining some small modules, waiting to get the best ratio, first make a small fairy boat. After repeated improvement, when you finally determine the material and proportion, you will reach the level of seven grade immortal craftsman, and then refine the castle immortal boat. "


    Xu JieFei listened to Xu Ziyan''s words, a heart "Dong Dong" to jump up, heart suddenly enlightened.


    In my heart, I can''t help admiring the saying:


    "the saint is the saint! There is no saint who doesn''t understand! "


    "Well! In addition, in the future, the structure of the castle fairy boat will be redesigned. You have to constantly test what kind of structure has the strongest defense. We should know that different structures have different defences. There should be a main turret and auxiliary guns. This is related to the Zhifu hall. "


    Speaking of this, Xu Ziyan turned his eyes to Xu Shicheng and said, "don''t limit the rune cannon to the plane."


    Xu Shicheng looked stunned and said weakly: "Shengzu, isn''t this Rune gun depicted on the plane of the immortal weapon, and then gathered the immortal forces of heaven and earth to form an energy bomb? Can it still form three dimensions like the array? "


    With a smile, Xu Ziyan drew a gun barrel with a branch on the ground, and then drew a circle on the barrel:


    "this needs the cooperation of the refining hall." Turning his head to Xu JieFei, he said: "when you refine the castle fairy boat, you need to reserve some holes. These holes are reserved for these cannons. Of course, these cannons also need to be refined by your weapon refining hall. This hole needs to be carefully studied by your weapon refining hall. You can''t see it at ordinary times, and it also has the same defensive power as the whole immortal boat. You have to wait until the battle time, these holes will open, and then the cannons will stretch out. "


    Xu JieFei pondered for a while and said, "we can do it by studying it in the refining hall."


    "Very good!" Xu Ziyan turned his eyes to Xu Shicheng again and said, "you can make runes on this barrel in a spiral situation. This kind of rune is formed around the whole barrel and naturally forms a three-dimensional Rune gun. Its power is more than doubled."


    "Wonderful Xu Shicheng clapped his thigh hard and cried.


    "Well, there''s more! You have to test the length and spacing of the helix, what kind of situation will achieve the maximum effect. We should also refine the size of each Rune in the rune chain, the distance between each other, and the types of runes. First make a small experiment, and then constantly improve, waiting for you to succeed, you will be the Qipin immortal Fu master. "


    Xu Shicheng''s eyes are shining.


    "And here!" Xu Ziyan pointed to the base of the barrel and said, "here, the refining hall needs to forge two circles of holes. One circle for Xianjing and one circle for Xiandan. In the future, once the surrounding Xianyuan forces are evacuated, the Xianjing or Xiandan forces can be extracted and transformed into the energy of the rune gun.


    Of course, you have to test the power of Xianjing and Xiandan, and list their ranks. "


    These things Xu Ziyan said were unheard of by Xu JieFei and Xu Shicheng. They all closed their eyes and digested for a while. Then they took a long breath and slowly opened their eyes. Looking at Xu Ziyan''s eyes become fanatical.


    Xu Ziyan turned his eyes to Xu Yiliu, who had been waiting for him to be in a hurry, and said, "give me one of your refined Yuanli pills."


    Xu Yiliu quickly takes out a yuanlidan and hands it to Xu Ziyan. Xu Ziyan''s eyes sweep. It''s just a elixir. He opens Kunpeng''s eyes and looks inside yuanlidan. Then he uses a little force to crush yuanlidan. A strong xianyuanli comes out.


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