Seeing that Lu Qingyuan said solemnly, Xia Yu also became nervous.

As a kind of energy fluctuation secret technique that can suppress his own perception, he knows the value of "condensation" very well, and it is normal for it to be difficult to get started.

"When you urge perception, the energy that is triggered will have a fluctuating frequency...... Well, you know what volatility is? That's good!"

Considering that Xia Yu only had a level 2 perception strength, Lu Qingyuan felt that he should be more detailed: "Of course, in different states, this energy fluctuation will keep changing. You use your perception to find your way, test new traps, and go all out to get into battle...... The frequency of the fluctuations produced is different. ”

"Well, this is natural!" Xia Yu nodded, and at the same time slightly urged his perception, feeling the fluctuation of that trace of energy being pulled.

"Now, you need to constantly familiarize yourself with the fluctuations of your regular movements, especially when probing and fighting—to put it bluntly, in what state you plan to use Gaze, you need to thoroughly understand and familiarize yourself with the perceptual state in this state. ”

This doesn't seem to be too difficult......

Under the 21 perceptual tentacles, Xia Yu's perception is extremely fine in the eyes of outsiders, and the accuracy of detection is also high, so it is not difficult to grasp the fluctuations of his perceptual energy.

"Okay, and then?" he asked subconsciously.

Lu Qingyuan was taken aback: "You have mastered this, you can't make a mistake, if you make a mistake, the condensation effect will be much worse." Of course, you can familiarize yourself with one state and master this method of entry before practicing the others. ”

Xia Yu knew that his perceptual state was rather peculiar, so it was inconvenient to say more, so he could only say: "I understand, you can continue!"

"Okay, the next step is the most critical step!By the way, judging from your perception characteristics, you should have opened the second perception tentacle, right?" In the serpentine shuttle tunnel test, Lu Qingyuan found that Xia Yu's state was very special, and after a little thought, he roughly understood.

"Well, how do you know?"

"Hehe, you kid still want to hide it from me!" Lu Qingyuan pursed his lips and continued: "But this is easy to do, otherwise it will be very troublesome." The core of the secret art of 'condensation' is that under the original perceptual fluctuations, it is necessary to emit another kind of fluctuation, which is as consistent as possible with the original fluctuation CD, but the rhythm of the fluctuation should be just the opposite. ”

Lu Qingyuan organized the language and wanted to put it simply: "Well, it's like two opposite forces hitting a ball, and the two forces just cancel out, but keep the ball still...... This one is very difficult, but you have a second tentacle, and I believe that you can practice for a while...... Huh?"

Suddenly, Lu Qingyuan's words couldn't go on.

At this moment just now, his powerful and keen perception sensed that the perceptual fluctuations that Xia Yu had been curiously probing just now were rapidly decreasing!

Two seconds passed......

It's not stopped!

"I'm not mistaken!" Lu Qingyuan was completely dumbfounded.

At such a close distance, his perception exceeded Xia Yu by too much, and he could naturally find that Xia Yu's perception fluctuations had dropped to an almost undetectable level.

That's ...... Learned?

The god of the mechanism is on top, this is a B-level secret art!

For ordinary people, it would take a long time just to understand this principle, after all, 2-star monks are not involved in theoretical learning.

Moreover, simulating another opposite perceptual fluctuation to hedge requires extremely fine perceptual control......

Lu Qingyuan felt that he had really seen a ghost.

But right now, the energy fluctuations triggered by Xia Yu's perception were really reduced to an extremely low level.

If you are a 2-star monk, you will be afraid that it will be difficult to notice.

"That, I need to go to the training ground over there to give it a try, you wait for me!" Xia Yu had already put away his perception at this time, and the short test just now had made him feel some patterns.

As for the understanding of the principle......

Isn't this principle of condensation interference!

This principle is not difficult for me.

Even if he hasn't been exposed to acoustic knowledge for a long time, Xia Yu still remembers the basic principle of interference noise reduction-by emitting sound waves with the same frequency and amplitude opposite to the noise phase and noise interference to achieve phase cancellation, which can reduce noise.

The energy fluctuation caused by this perception is also a wave, and the so-called principle of the "condensation" secret technique is naturally also the principle of phase cancellation.

Further, interference is not only in the realm of sound, but also in the space where any two fluctuations can be superimposed on each other.

Does that mean that you can also emit opposite fluctuations and affect the perception of others?

It should make sense!

Thinking about the extradimensional structure mentioned by Master Qu before......

Xia Yu felt that he had probably discovered a new continent.

If it is said that the accumulation of mechanical knowledge on the earth allows him to quickly transform mechanisms such as Mauser and armor-piercing bullets, can some theoretical knowledge that may be used be used in perception, source array, etc.?

Wouldn't that be a big profit!

Wrong!

Xia Yu suddenly reacted, the knowledge of wave interference that he had learned in middle school on the earth, in this world, I don't know if anyone will study it, at least no one will teach it to ordinary people......

Or like this, some people discover the pattern and evolve it into a secret art, but it is also a treasure that is not easy to pass on.

When landing Qingyuan, he must not say the word "interference".

But thinking of this, he couldn't wait to go back and study the three copies of "Popular Organ Technique" that he got from Master Qu to see what the theoretical parts were talking about.

"Hey, you really know it, but you can't do it, this 'condensation' secret technique is ......" Lu Qingyuan was still in a daze, and when he saw that Xia Yu had already run to the training ground, he pulled out a source-shooting crossbow and compared it, and couldn't help but shake his head.

"Hmph, let your kid be anxious, don't blame me for not reminding you of the side effects!"

Xia Yu really can't wait.

In particular, feeling that "Condensation" seemed very simple, he couldn't wait to master it thoroughly, and then take the "Huaifeng" sniper rifle, and then find a three-star monk to test the gun!

......

Ten minutes later.

At the foot of the training room, a young man meditating cross-legged had a hideous expression, and beads of sweat the size of beans on his forehead kept seeping out.

It is Xia Yu who has obtained the secret technique of "condensation" and can't wait to keep trying.

"Ahh

He let out a sudden cry of pain, and his mind felt like it had exploded.

Under this severe pain, Xia Yu didn't care about the image, holding his head and rolling on the ground, his fingers kept scratching his hair, eager to dig out his skull and pull out the terrifying pain.

It was a full two minutes later, as Cyclone Gan regained stability, that he felt slightly better, but his mind was still blank.

"Lu Qingyuan, your sister!"

Xia Yu shouted directly this time.

The negative effect of this "condensation" secret technique...... It was so painful.

Xia Yu boasted that his willpower was strong, and when he faced Cui Dalong's pursuit in the wild, he had already reached the limit of his body, and most of the rest was completely supported by his will.

But unlike the limits of that kind of body, "condensation" acts on perception, and this sharp pain also acts on the depths of the brain and soul.

Not far away, Lu Qingyuan drank juice leisurely, deliberately downplaying his expectations to hide the shock in his heart: "I wanted to warn you in advance, but I didn't expect you to run so fast......"

I can't help but be shocked!

I have traveled south and north for many years, and I have seen many geniuses, but Xia Yu shocked him too much this time.

You are an apprentice of a 2-star mechanism, how can you understand the theory of "condensation" so quickly!

Even if you understand the theory, how can you have such a powerful perception and control ability, and you can successfully perform it on the first attempt!

The most hateful thing is that even if you use it successfully, why do you cast it without moderation for more than ten minutes, and the side effects only last for more than two minutes?

Is this still the "condensation" I taught you?

"You can't say it sooner......" Xia Yu still felt a little uncomfortable, tried to calm down the perception cyclone, glared at him and asked, "Is there anything else you haven't said? Don't pit me again!"

"Don't rely on it!" Lu Qingyuan's expression suddenly became solemn: "In addition to the side effects, condensation will also affect the direction of your perceptual evolution, and long-term use will cause great uncertainty in the evolution of your perception, especially for your mechanics, this is especially important." ”

"Understood!" Xia Yu nodded and wrote down.

The theory of this condensation secret technique may be understandable on its own, but there is no doubt that in today's Federation, this secret technique is a more cherished and powerful kind of exercise-like thing than the body technique, because it acts directly on perception.

Mechanism, Source Energy, Perception ......

It seems that the entity of this world is improved, and perception is the core!