Compared with the strange uncle Ed Yasinsky with mitochondrial ability, and Dvoru, the golden lion who mastered thunder and lightning, the son of the god in this battle is very special, Gu Tie's physical strength was quickly lost after being hit hard, and his brain did not stop running, hanging upside down under the iron chain, he watched Aqiwei attack again and again in vain, and a thought popped up in his heart:

The ability to use ultrasound and infrasound, judging by the mutated mouth, the articulatory organ is still in the mouth, right?

Fortunately, the TBM was advancing, and there were too many variables in the surrounding environment, otherwise no one would be able to defend against sonic attacks in such a narrow space.

A shield can resist knives and guns, armor can resist bullets, but what can be used to stop the spread of sound? Ultrasound mainly acts on the human auditory organs, can it be done with earmuffs? Infrasonic waves will resonate with water molecules in the body, thus injuring internal organs, so how can we defend against it? The medium attenuation of infrasonic waves is very small, even if you wear heavy armor like a transformer, infrasound waves can still roast the human body in a metal shell.

Wait, the medium......

The only weakness of sound weapons is that they rely on medium propagation, which is more dependent on the surrounding environment than kinetic energy, optoelectronics, and energy weapons. As long as the medium of propagation is eliminated, the enemy can be prevented from attacking.

Sound waves emit from the mouth and travel through the air, so that they can only deprive the enemy of the air around them?

Due to hanging upside down under his head and feet, the violent jolting of the shield machine caused his head to constantly collide with the uneven steel shell, Gu Tie began to feel that his eyes were bloodshot, and his breathing became more and more difficult. At this time, he suddenly saw Xiao Liping. In the infrasonic bomb attack of Anmasa, the tail of the shield machine was damaged in many places, and through the hole in the steel plate, he happened to be able to see the situation in the operation compartment, Xiao Liping hung in the seat and pursed his mouth and quickly tapped the keyboard, and after completing a series of operations, he wiped the beads of sweat on his forehead, and looked at the cabin, which happened to meet Gu Tie's sight.

The tacit understanding between the two for more than ten years allows them to communicate beyond words.

Lao Xiao: The guy outside is very powerful, hurry up and get rid of this broken machine!" Gu Tie said.

Do you want me to leave you and run away? Xiao Liping said.

Ahhh

You mean how do you operate the machine when the screen is broken? The system is still working, just enter the appropriate commands, but I still need some time, you know that the shield machine is not suitable for nimble steering, like a Lamborghini trying to turn around in the dense flow of people on Wangfujing Pedestrian Street. Xiao Liping said.

Who is talking to you about this topic! I mean the thing next to you! Gu Tie's eyes rolled wildly and almost fell out of his sockets, and his mouth was hard to the left.

Due to the shock, distance, or injury, there seemed to be something wrong with the mental conversation between the two, but fortunately, Lao Xiao finally turned his head and noticed the object that Gu Tie was pointing at.

This is the fire extinguishing device installed in the shield machine, what do you want to do?

Don't talk nonsense! Give it to me!

It's not a fire extinguisher, it's something that explodes!

Lao Tzu knows! I have seen a lot in the railway system! The railway fire brigade will also be equipped with this kind of vacuum fire extinguishing bomb, the principle is to use chemical powder to sting nitrogen, oxygen and carbon dioxide, and then use a strong shock wave to blow away the dust and residual air to create a short vacuum to extinguish the flames. I don't have time to popularize science, express it to me!

I see. Hold on.

Xiao Liping raised his gun and fired a volley of bullets to temporarily repel An Masa who was poking his head, and then pulled out the red cylinder next to the console and jumped out of his seat. He staggered a few steps in the dimly lit cabin, knelt down in front of the aft wall, and pushed the vacuum fire extinguisher out with all his might. "Crunch......" The metal on the edge of the hole curled up, and Lao Xiao pushed forward with all his strength, the distance between him and Gu Tie was only thirty centimeters, and Xiao Liping, who was separated by a bulkhead full of holes, said: "Don't die! If you have to die, I can die for you. -- For example, now. ”

Gu Tie said: "Use some strength! I haven't eaten enough at noon, big brother! Just your virtue, when we go back to Beijing and drink beer at the second aunt's, I will kill you! I'm not afraid of your revenge,...... You can't hear it anyway!"

Of course, due to the damage to the eardrum, neither of them heard the other's monologue. The fire extinguisher was finally pushed out, Gu Tie's arms sank, and the steel rope strangled his leg with severe pain, and he snorted and hugged the red steel cylinder tightly. The most important thing is to find the right moment, an opportunity to separate the enemy from the EPBM, otherwise even if the vacuum bomb blows away all the air, the steel will still become a medium for sound waves. The blood at the corner of his mouth flowed down his cheeks into his eyes, and Gu Tie narrowed his eyes and looked at the fighting figure of Aqiwei above.

The explosion occurred, the first steam turbine was shattered in the violent explosion, Gu Tie could feel the behemoth slow down like a wounded rhinoceros, but at the same time, he found that the position where the enemy was standing had been hollowed out, and only a few finger-thick steel bars connected the cabin. He turned to the cabin, exchanged a look with Xiao Liping, and then looked into the air to find Aqiwei's gaze. The Flower of the Rainforest would glance in his direction worriedly every few seconds, and Gu Tie quickly caught her attention, "Come on." The Chinese bowed his head slightly, stretched out his arms and made a hugging motion.

Without hesitation, Aziwei relaxed her body and fell into the man's arms again. Gu Tie threw out the steel cylinder with the strength of milk, Lao Xiao cut the steel frame with a bullet, and the vacuum fire extinguishing bomb exploded in the air, creating an instant vacuum of fifty cubic meters. The opportunity was fleeting, and Gu Tie didn't have the confidence to change the magazine to kill the enemy before the air around him could return to him, but he had a more powerful weapon. "Azivy!"

The silver-haired woman shot out with lightning, and the platinum strands pierced through the enemy's body, bringing out a dazzling stream of blood. The tall South American man swerved and fell into the mud, and in the blink of an eye, the flower of the rainforest grabbed a steel bar to stabilize her body, and pulled the chain up little by little.

"Plop!" As soon as Gu Tie's back touched the inner bulkhead of the shield machine, he felt stuffiness in his chest, severe pain in his abdomen, and dizziness, and he didn't have the strength to move anymore, but he stretched out his hand and grabbed Xiao Liping's sleeve and shouted: "He's not dead! Hurry up, don't let him catch up!"

Lao Xiao didn't talk nonsense, jumped back into the driver's seat and grabbed the handle, the countdown in the corner of the broken screen finally returned to zero, and the joystick was slowly pulled down. ......The second steam turbine is overloaded with a strange roar that transmits the energy of the nuclear reactor to the head of the shield machine, and the scoring wheel deflects on the gyroscopic axis. The center of gravity changed, and the three people began to slide downward, Aqiwei hugged Gu Tie and looked at him worriedly, and the Chinese laughed helplessly.

Two minutes later, the TBM resumed its vertical excavation posture and continued to drive deep underground. The three of them sat on the floor, staring at the mess of the cabin in silence. The first-aid kit found in the locker had expired for many years, but Aqiwei still poured Gu Tie with hemostatic drugs, anti-inflammatory drugs, painkillers and anti-allergy medicines, Gu Tie coughed up blood and spit out the pills, and the flower of the rainforest immediately grabbed the water bottle and took a sip of water, kissed the man's lips, and washed the drugs into Gu Tie's throat with water.

Xiao Liping silently twisted his head, "Take advantage of others, hate ......" Gu Tie smiled weakly, stretched out his hand and stroked the tips of Aqiwei's hair, "Is your hair short? The new hairstyle is also good......" The flower of the rainforest had a painful look on her face, but she could put her face close to the man's palm and gently rubbed Gu Tie's rough palm.

Due to the self-healing and compensatory effect of the auditory organs, the hearing of the three gradually recovered, Gu Tie was afraid that the atmosphere was too strange, so he cheered up and said two jokes. "Your injury is not as serious as it seems, it should be bleeding from the stomach mucosa or esophagus, not to the extent of a gastric perforation. Since you can still tell jokes, it means that you can't die for the time being. Lao Xiao observed for a while and relaxed slightly.

"I'm going to die!" Gu Tie leaned into Aqiwei's soft arms and chirped, "I didn't want to die until I figured out these messy things! When he was attacked by Aziwei, he seemed to use his body as a sound wave conductor, creating a high-frequency vibration to resist the puncture, and he was not mortally injured. However, even the sons of the gods will have a hard time digging holes in the ground to catch up with us, so it is safe for the time being. ...... Old Xiao, where are we going? Half of the momentum has been lost, can we arrive on time?"

"It's about 400 meters down, and you can see the model of the underground fault on the screen on the right, yes, the one that splits in half. Xiao Liping took off his tortoiseshell glasses and replied, his lenses were cracked by ultrasonic waves and covered with spider web-like cracks, and it was really tiring to see.

Gu Tie wanted to sit up, but was pushed back into his arms by Aqiwei. He turned his head awkwardly to look at the screen and muttered, "Since you have a map, why didn't you tell me earlier, it always feels like you are going to abduct us to some third world country...... Wait a minute, this picture is where we're going?"

"Yes, that's a three-dimensional map of sonar scans. Lao Xiao said, "The building above is the underground bunker of Panshen Wine Cellar, we are now in the lower middle position, and a few hundred meters down can reach the outer building of the second floor, from where we ......."

Gu Tie's eyes widened, and his pupils were full of incredible shock: "From there, enter a super large room, the room is a huge cube with a side of one hundred and fifty meters, and there are twenty-four doors around it, each door leads to a place, but no one knows which is the right direction. ”

"How can you know?" Xiao Liping stood up suddenly, and said sharply: "There are no more than five people who know the exact structure of the second layer, and no one else knows this secret, even if it is ...... you"

As if sleepwalking, Gu Tie stared at the map and said to himself: "Ah, there are so many doors, but none of them are correct, so many rooms contain so many secrets, but the real secret is not here...... Below, in the glowing room, there is a real secret......" His body suddenly shook violently, and his eyes returned to clarity.

Slowly turning his head to look at the two people beside him, Gu Tie looked a little confused. "This place...... I've been here before. ”