Xu Xingkong shook his head slightly, expelled the strange feeling in his heart, and observed the sublimation array in front of him intently.

Xu Xingkong didn't know what the so-called sublimation array was for, but seeing the materials placed in this formation, combined with the meaning of Fang Hui's words, Xu Xingkong could roughly guess what the sublimation array was for, and this sublimation array should be a formation to improve the quality of materials.

"Senior Brother Fang, shouldn't the materials that were put in at the same time be taken away at the same time?"

Fang Huichi shook his head and smiled: "Of course not, it would be nice if it was that simple, the reason why this work must be done by a trainee demon hunter is because it is impossible to simply use time to define whether the material has been sublimated." Even if the same batch of materials of the same material is put in, the time to complete the sublimation is different. ”

"Oh, that's right. ”

"In fact, what I just said is inaccurate, the so-called 'complete sublimation' is a very unrigorous statement, the material will never be completely sublimated in principle, but the material properties are improved in the sublimation array is a not complicated curve, when the material properties are improved to a certain extent, the improvement curve will become very gentle, and it is not cost-effective to continue to spend time on sublimation. However, there are exceptions to this, and this is one of the areas of your work. ”

"What do you mean? Is there something that breaks this curve?"

Fang Huichi nodded in agreement: "Yes, there are indeed some materials that can break the conventional sublimation curve, this is the so-called best material, but this ratio is quite low." ”

"Oh, so how can you tell if the material has reached the gentle stage of the sublimation curve?"

"Hehe will really pay attention to this direction, in fact, the probability of this superb material appearing is very low, you still have to pay attention to the normal direction, of course, no matter what kind of material, the identification is based on observation and perception! This point is taught in school, but your situation is special, let me tell you about it carefully." ”

Xu Xingkong nodded gratefully: "Then trouble Senior Brother Fang." ”

Fang Huichi smiled kindly. After sorting out his thoughts, he continued: "Whether the material has reached a stage of sublimation, in fact, it can be seen from the interaction between the material and the free active Yuan Ling, and the easiest way is to compare the target with a new material. If there is a large gap between the two Yuanling fluctuation tables, it means that the target has reached an inflection point. ”

"So the first half of this sublimation curve is very even?"

"Yes, before reaching the inflection point, the newly put in materials are almost the same as those that have been put in for a while, and once it is found that there are obvious differences. Most of them are materials that have reached an inflection point. Generally speaking, the time for the same batch of materials to reach the inflection point will not be more than one month, and the materials that have not reached the inflection point for more than a month are likely to be the best materials, or the materials that have failed. ”

"Isn't that what happened?

"This is also possible, but this requires the discerner to have a very high degree of Yuan Ling recognition, there are many kinds of materials here, I have never seen a demon hunter who can have such a wide degree of recognition, if it is possible to use the formation to assist, but it is almost impossible to run other formations in this kind of place. If you get it out and test it again, it is too troublesome, and the labor cost is also very high, which is not cost-effective at all. ”

"That's true, but wouldn't that be a bit of a misjudgment?"

Fang Huichi smiled: "There must be some miscalculations, but this is still the most cost-effective method, of course, we will also pay attention to the personnel who carry out this work, if the error rate is too high, we will point it out." Senior Brother Xu, you just came. It doesn't matter if the error rate is higher, it's just a matter of running a few more trips anyway. ”

Xu Xingkong hurriedly replied with a polite smile: "Fortunately, Senior Brother Fang takes care of it. ”

"Hehe, you're too polite, everyone is a brother in the same sect, by the way. Would you like to give it a try?"

"Okay!"

Fang Huichi turned around and lifted the metal box from the battery car, Xu Xingkong wanted to step forward to help, but Fang Huichi had easily put the small box on the ground, and opened the box casually, inside was a piece of brown wood material that was neatly cut in size.

"This is"

"This is a masculine peach, said it was a peach. In fact, it is a synthetic material, which is made of specially cultivated peach tree and locust tree chips, mixed with gel and some metal powder pressed under high pressure, this thing can be used as a formation base, or used to build large-scale spiritual weapon buildings, and some people use this thing to build portable spiritual weapons, but the effect of the things created with this thing is limited, fortunately, the price is cheap, and there is still some market in those colleagues who are shy in their pockets. ”

This is really a 'brick', but in the eyes of ordinary people and poor people like Xu Xingkong, even if it is a brick, this thing is a gold brick.

Fang Huichi introduced while casually picking up a piece of positive peach wood and handing it to Xu Xingkong, while he himself turned around and walked along a corridor to the top, stretched out his hand to turn the circular wooden frame, then picked up a piece of material and observed it and put it down, and after a while he picked up another piece, then smiled with satisfaction, reached out and picked up another piece of material casually, turned around and walked back.

Waiting for Fang Huichi to put these two pieces of materials in front of him, Xu Xingkong found that the two pieces that Fang Huichi took back looked no different from the one in his hand, maybe they were the same material.

"Senior Brother Fang, why do you use composite materials?

"Hehe, on the contrary, composite materials are far inferior to natural materials, but natural materials grow under harsh conditions, how many suitable materials can be found to use, this composite materials are easy to manufacture, relatively inexpensive, and can be mass-produced, you know?"

"I see. ”

"Look at it, one of these two materials has reached an inflection point, and the other has not yet reached it, try to see if you can tell the difference?"

After Fang Huichi finished speaking, he looked at Xu Xingkong expectantly, and the smile on the corner of his mouth was a little playful and meaningful.

Xu Xingkong pursed his lips, looking serious, but in fact, he was secretly snickering in his heart, because under his true vision, the gap between the three materials was very clear, and the halo emitted by the three materials was completely different.

The material that had just been taken out of the box only emitted a faint halo that was not even visible if you didn't look closely, while the other two materials taken out of the sublimation array had a noticeable halo. One of the halos is very stable and the brightness is acceptable, while the other is slightly dim and you can see that the halo is not solid. After a while, the halo had spread, and the brightness of the halo had decreased a little.

Of course, Xu Xingkong didn't dare to say what he saw immediately, but pretended to pick up this piece and look at it, and then pick up that piece to see. From time to time, he frowned, his eyes looked at Fang Huichi probingly, and after a long while, Xu Xingkong pointed to one of them:

"This is the material that has reached an inflection point, right? ”

"Hehe, yes, I grasped the key at once, Senior Brother Xu is really extraordinary. ”

Senior Brother Fang laughed. ”

Fang Huichi waved his hand and said, "I'm not praising you indiscriminately, there are quite a few people who come here to do this job, and you are the first to accurately identify the target in such a short time, just a little slower than when I first came?"

"It seems that Senior Brother Fang is still powerful!"

"It's different. I retired from the front line to work here, but Senior Brother Xu has not yet officially entered the front line of work, the experience is much worse, and Senior Brother Xu has not undergone formal training, and he does not even have the master's ear to face the order, the gap between this"

The more Fang Huichi said, the stricter his expression became, and he also realized that he seemed to have underestimated Xu Xingkong with a shabby face in front of him, and there must be a reason why Master Yang could be his guide. Fang Huichi completely erased the last bit of contempt in his heart, put his mentality right, and looked at Xu Xingkongdao, who was a little twisted:

"The gap between this cannot be reasoned, it seems that Senior Brother Xu's potential is far above my estimate. is worthy of being a person valued by Uncle Yang. ”

"Senior Brother Fang has won the award, hehe, maybe I'm better at this. ”

"Maybe, then you can try it on the shelf, find all the materials that have reached the inflection point, and replace them with new ones. ”

"Okay, when the time comes, I'll have to trouble Senior Brother Fang to help see if there is anything missing. ”

"Of course. ”

This time, Xu Xingkong didn't dare to be so fast. It took more than 20 minutes, and even deliberately chose the wrong one, missing two, and then the materials on a shelf were screened, Fang Huichi helped Xu Xingkong review once, found the wrong one, found the missing two, and added new materials together.

Putting the selected materials into another basket, Fang Huichi looked at Xu Xingkong with deep meaning:

"Yes, that's basically the work, the other gossip is just different in the material, the work process is the same, you can get started, let's do it today, wait until you make an appointment to work before you officially start working, I'll send you back first." ”

Xu Xingkong replied with a respectful smile: "Okay, I'm sorry to trouble Senior Brother Fang." ”

Fang Huichi drove back to the office, put things into the warehouse, and then called the bored old Wang to return by battery car, which drove all the way to the elevator.

"From this elevator up, the negative floor is the subway Laojie station. ”

Xu Xingkong nodded with a polite smile: "I know, by the way, I forgot to let Xiao Liu take this visit card back." ”

"It's okay, just leave it to me, the next time you come by yourself, just show your ID card at the access control, there is a sensor in the elevator, and you will have the option of minus five floors underground with your ID card. ”

Xu Xingkong looked at the touch screen in the elevator and nodded with a smile to show that he understood.

Seeing Xu Xingkong and Lao Wang leave, the smile on Fang Huichi's face gradually converged, and he stood at the door of the elevator for a while with a worried face, and then turned around and got into the battery car and left.

Inside the elevator, Xu Xingkong and Lao Wang didn't make a sound, until the elevator stopped on the negative floor, and Lao Wang ran to guide Xu Xingkong.

The two of them came out of the elevator, walked along a corridor for about ten meters, and entered the main passage as soon as they turned a corner, their eyes were full of people, the mixed smell that came to their noses, and the noisy sound that came to their ears, Xu Xingkong frowned.

"Otherwise, let's go up and get a taxi, or find a colleague. ”

"No need, just take the subway, I'll go home directly, you go pick up the car." ”

"That's fine. ”

"Lao Wang, it's okay, thank you today. ”

"You're welcome, it's an honor to help you. ”

Lao Wang said with a smile, his eyes were very clean, he didn't hesitate or be confused, nodded at Xu Xingkong, and turned around and left first without hesitation. (To be continued.) )