"Thousand ......" lowered his head slightly, and light words floated out of Nagai's mouth like mist, "Thousand ......"

Boom -

The deafening loud bang suddenly exploded in the court, and the heartbeat stopped, and I saw a sudden burst of milky white air on Nagai's racket, tearing at the clothes of the people in the stadium like a storm. Pen % fun % Pavilion www.biquge.info

Songgang's pupils shrank suddenly, and his whole body stiffened.

This is!!

"Resonance—"

Boom -

The tennis ball exploded, shooting out like a cannonball, and at the same time flew towards the two people in a counterclockwise direction, and everywhere it passed, it constantly made a sizzling sound, like the sound of electricity rushing by.

Thousands of books!!!

Fujiwara's gaze tightened, but in the blink of an eye, it returned to normal. glanced at Sakuraichi without a trace, and when she saw that her face was indifferent, she retracted her gaze, she remembered that Sakuraichi would also be 'a thousand books', but as for whether it was the same move, I don't know, but it is certain that whether it is the same or not, Nagai's is not at the same level as Sakuraichi's, and the difference in strength is too big.

"What is this ?!!!?"

"There is actually a spiral white air current, and it is all substantial!!"

"What a strong !!"

The spiral force is too strong to take !!

Coming to a conclusion in an instant, Matsuoka gritted his teeth and turned his head and shouted: "Mita--"

Wow -

Mita jumped up, his clothes flying up, and at the same time, he responded: "Get out of the way!! ”

When he shouted, he instantly stabilized his body in mid-air, his left elbow tightly against the racket, and his eyes were strong and firm. Nagai's racket has been almost shattered by her Fronbo, she dares to guarantee that Nagai's ball is more than the previous level, the strength is one or two, after all, the racket has cracked, it is inevitable to remove some power, and the rebound power of the tennis ball is definitely insufficient.

So, in her opinion, it is safe to take this ball!!

"Can you take it?" Mizuno Hayaki clenched his hands, looking at Mita, who had begun to accumulate strength, he couldn't help but beat his heart faster, this ball is crucial, if he wins, he will break the serve, which is beneficial to the next game to play, and it can hit Nagai and Kayama psychologically; If you can't take it, then Lihaida's hair, although it is not to be afraid of them Dongbang, it will still form a certain pressure on Mita and Songgang.

Once the pressure is formed and they don't solve it in a short time, then this pressure will invisibly press on their hearts little by little, and once the amount is enough, it will make the two lose their coolness. After all, Toho has always been arrogant, and he has never bowed his head in front of anyone, whether it is Lihai University or Nagoya, it is not enough to make them bow their heads.

In the blink of an eye, in the court, I saw Matsuoka sideways avoiding the tennis ball, his hair was torn by the strong air current, and he deliberately ignored it, staring at Mita in the middle of the backcourt, whether she succeeded or failed can only depend on her.

Yamada held the clap with both hands and held it high above his head, his eyes were cold and cold, "Bian Wei ......"

Zi~~~~~~~~~~~~~~ Zizi~~

Suddenly there was a sound of electricity in the air, and then an arc of electricity suddenly flashed, then vanished, and then a second, and then a third......

The pale blue arc was not very clear in the daytime, but everyone could see that the scorched air was floating crookedly, and the wisps were very strange.

His eyes condensed, and Mita's hand holding the racket suddenly tightened, "Seeking Dao Yu ――――――――"

Boom -

There was a loud bang, and the white light was blinding.

The racket suddenly lightened, and the yellow-green light interspersed on the racket, and Mita's eyes followed its figure forward and even moved to the back, and with a bang, something fell heavily to the ground, bouncing one by one, like a human heartbeat.

Quiet!

The stadium was silent, save for the sound of heartbeats.

"Total ...... Resonance ......" widened his eyes, and Mita looked at the tennis ball on the ground in disbelief, still the same frequency as his heart.

"Wow, ahh!!!h

"East ~ Bang ~ Winner, Runoff-in-ours, Runoff-in-ours!"

"Mita-kun, come on, !!"

"Chang~Sheng~Lihaida, Let's-go, Let's-go, Let's-go!"

Looking at a few people, Sakura's eyes moved slightly.

Resonance refers to the phenomenon that the amplitude of a mechanical system increases significantly when the frequency of the excitation is close to a certain order of the natural frequency of the system. In resonance, the energy input into the mechanical system is maximum, and the obvious mode shape of the system is called displacement resonance, in addition to the velocity resonance and acceleration resonance that occur at different frequencies.

In mechanical resonance, common excitations include alternating forces acting directly, vibrations of supports or foundations, and unbalanced inertial forces of rotating parts. The excitation frequency at resonance is called the resonance frequency and is approximately equal to the natural frequency of the mechanical system.

For a single-degree-of-freedom system, there is only one resonance frequency, and when a frequency-sweep excitation test is performed on a single-degree-of-freedom linear system, a formant peak appears in the amplitude-frequency response.

For a linear system with multiple degrees of freedom, there are multiple resonance frequencies and multiple formant peaks appear correspondingly during the excitation test.

For nonlinear systems, amplitude jumps occur in the resonance region, the formant peaks are significantly deformed, and superharmonic resonances and subharmonic resonances may occur. During resonance, the work of the excitation input system is balanced with the work dissipated by the damping, and the shape of the formant is closely related to the damping.

In general, resonance is harmful, causing great deformation and dynamic stress in machinery and structures, and even causing destructive accidents, and there is no shortage of examples in the history of engineering.

Nagai unleashed the powerful spiral power of the tennis ball and then struck out with a hammer, and when he encountered Yamada's 'Bianwei Seeking Dao Jade', the power of 'Senben Senji Resonance' exploded, and he used the power of 'Bianwei Seeking Dao Jade' to his own use, strengthening the source power of 'Senben Senji Resonance', and finally completely weakening 'Bian Wei'. Resonance, on the other hand, means to bring the enemy together and revitalize oneself.

In addition, Sakuraichi could feel that Nagai's 'Senben Senzi Resonance' was a nonlinear subharmonic resonance, which was extremely destructive. Not only did her own body bear twice as much shockwave, but even her opponent had to withstand at least 3.5 times the shockwave, which was a move that damaged 1,000 enemies and 800 self-damage.

However, Sakuraichi didn't understand that this kind of move was supposed to be a lethal move that would only be used when the most critical ball was protected, but Nagai used it now, and it seemed that something was wrong. And just now, Nagai's eyes were looking at his right hand, since it was his right hand......

Sakuraichi turned her eyes to look at Yamada, her entire arm hidden under her sleeve had turned red, and her eyes couldn't help but squint slightly.

There is no need to compare this one.

However, no one knows her conclusion, and the game is still going on in the stadium.

"Ho~~Ho~~~" Nagai gasped, his face was covered with sweat, and just one blow of 'Senben Senni Resonance' required all her strength, so, what should I do in the next game?

[I just came back from a business trip, and the family's dog Qibao and Eight Sisters have a little cold again, and I have to take care of them, sorry, it's even late. I'm going to the pet hospital tomorrow. 】