Dust becomes an "explosive" because it has a large surface area. Compared with bulk substances, dust is more chemically active, has a larger area of contact with air, adsorbs more oxygen molecules, and has a faster oxidative exothermic process. When the conditions are right, if one of these grains of dust is ignited by fire, a chain reaction occurs like an atomic bomb, and an explosion occurs.

In later generations, the news of dust explosions in flour mills is no longer a strange thing, and flour explosions should be said to be a very representative affair in dust explosions. When a large amount of flour is suspended in the air and reaches a very high concentration, such as 9.7g of flour per cubic meter of air, once it encounters a flame, spark, electric arc or the right temperature, it will instantly burn and form a violent explosion, which is no less powerful than a bomb.

The more than 200 soldiers of Haneda's squadron marched cautiously to normal speed at the beginning, and it was not long before they reached the middle of the street, where Zhuo Fei ordered to dig a pit and fill in the flour. Zhuo Fei in the shop immediately handed the detonator beside him to Niu Laoshuan, but he picked up the rifle himself, "After a while, I'll shoot their sharpshooters first, and when you see me finish shooting the second bullet bridge, press the detonator." ”

Niu Laozhuan wanted to nod, but he didn't know that Zhuo Fei didn't give him a chance to nod at all, and as soon as he took over the detonator, Zhuo Fei had already fired the first bullet here. "Bang" a gunshot, a Japanese soldier walking in the middle of the street fell down, and before the other Japanese soldiers could react, Zhuo Fei's second bullet had already arrived, and the flag soldier with a plaster flag on the "poof" rifle also fell to the middle of the street with a bullet.

Niu Laozhuan had already seen Zhuo Fei's marksmanship on the roof, and in the blink of an eye, Zhuo Fei had already shot out the five bullets of the first bullet bridge, and seeing Zhuo Fei take the other rifle handed by Zhuo Yan, Niu Laozhuan immediately reached out and held the handle of the detonator, waiting to press the handle down at any time. Niu Laozhuan had seen Zhuo Fei's method of using two rifles to shoot in turn, and he was no longer surprised, but the other routs in their hidden shop were all staring at each other.

Ten shots, Zhuo Fei only fired ten bullets, and ten Japanese soldiers had been shot and fallen on the street, a distance of 200 meters, for Zhuo Fei, who has automatic gun sighting, it was as simple as eating and drinking. The soldiers of Haneda's squadron lowered their bodies and prepared to shoot back, but at this moment, Niu Laoshuan, who saw Zhuo Fei shoot out the second bullet bridge, had already pressed the handle of the detonator fiercely, and there was a muffled sound of "boom", "boom", "boom", "boom", and a column of smoke rose on both sides of the street.

"Hidden, hidden." The officers and veterans of Haneda's squadron screamed and shouted, and the soldiers scattered and fell to their stomachs. It's just that to the surprise of these Japanese soldiers, the sudden explosions on both sides of the street did not hurt anyone, but with the floating soil rose a large puff of white dust, "Anti-poison, fast anti-poison, damn the people of China actually used biological and chemical weapons." Amid the curses of the angry officers and veterans, the soldiers of Haneda's squadron kept cursing while wearing gas masks.

A Japanese soldier with his head covered in white powder subconsciously reached out and wiped it on his face, and then shouted, "It's flour, these are flour." "Ah, it's all flour, don't the soldiers of China have weapons? Did they expect to throw flour to stop the advance of the Japanese army? More and more Haneda Squadron soldiers discovered that the white powder on their bodies was flour, so the Japanese soldiers who had already put on the gas protection area took off their gas masks and cursed the damned Shina skirmishers again and again.

Zhuo Fei in the shop pressed the handle of another detonator, and several other explosion points arranged on both sides of the street rang out, and the flour bags covered by the explosives exploded, bursting out a large amount of flour again. "Tom" Zhuo Yanhan smiled and stretched the grenadier out of the window of the shop, and fired a grenade into the middle of the street with the grenadier canister, "booming" a fireball on the dusty street. Immediately after that, the middle of the street where Haneda's squadron was located seemed to suddenly stand still, and the dust-filled air contracted violently, and with a loud "boom", the air began to become hot and the earth began to tremble.

There was a loud bang like an earth-shattering bang, and the scorching heat in the dazzling fire swept the mud and sand and tore the entire Japanese soldiers into the air...... The entire street was destroyed by the explosion and disappeared, large chunks of dirt and flames were thrown into the sky for dozens of meters, the dust that covered the sky made people want to cough, and the plugged ears were buzzing, and they could only hear their own heartbeat. The explosion had stopped, but there was still a roar in the ears, for nothing could be seen in the thick dust, and everyone was choking on the scorching air and coughing.

"Boom" "Boom" ,,,, explosion began again, and it was the explosion of the ammunition carried by Haneda's squadron, and the ammunition of the martyrdom covered the area again. The detonation of bullets, grenades, and shells once again brought the survivors of Haneda's squadron a gift of death. "Boom! Boom, boom...... The remnants of the Japanese army were all covered in smoke and dust in an instant, and the human body that was blown up in the air and torn into several pieces could be seen in the sudden flash of the explosion......

Rumble...... It seemed that the whole earth trembled, and Haneda Hiroji, who was supervising the battle in the back, was shaken from the ground more than a meter high by the huge blasting force and the armored car under him, even so, Haneda's nose was bleeding, and he was affected by being so far away, not to mention the other Japanese soldiers who were at the center of the explosion. The shock wave of the explosion intertwined, and the flying debris directly tore some of the hapless Japanese soldiers behind them to shreds. How long did the explosion last? A few minutes or half a century? Haneda Hiroji didn't know that in the confusion, in the hot pain all over his body, he gradually came to his senses and knew that the explosion had stopped.

Although he still couldn't hear anything in his buzzing ears, Haneda was still trying to cough loudly, getting louder and louder, because he wanted to hear his own cough, but his ears were still buzzing...... The man lost his balance, and he got up several times and stumbled back down; Then he stood up again, and finally he stood up straight.

Shaking his stunned head vigorously, through the dust that began to become thin, Haneda Hiroji could not see a person or a corpse, in front of him were large pits on the ground, large pits, and a few dancing flames in the pits were alive and sound, which were the ghost fires in the legendary hell...... One, two, three...... More and more bodies were found by him, but not a single living person was found.

The sky is full of smoke and dust, and you can't see anything at all, every foot down. It's all a fluttering sound. This area was already covered with all kinds of debris, and one foot on a intestine almost slid Haneda Hiroji, and the smell of gunpowder and fishy smell made him want to vomit. Everywhere were severed limbs and stumps scattered across the smoking, scorched earth.

Looking back, the two armored vehicles were quietly parked, the flames on the bodies were whirring in the scorching sun, and all the soldiers inside were bleeding black from the corners of their mouths and nostrils. Black blood flowed strangely from the corners of the mouths and nostrils of more soldiers, and their half-open eyes seemed to be able to see people, and there were no wounds on their bodies, but the stiffness on their faces indicated that he was dead.

The streets were as silent as death, and all you could hear was the sound of your own heartbeat and a cough.

The smoke was very choking. In this half-suffocating taste, Hiroji Haneda, who was trying to stand, had a feeling of drowsiness, and he was tired, as if he was sick, which made him involuntarily think of his wife at home in Nara. That time with a high fever, he lay in bed with weakness and drowsiness, and after Reiko gave him medicine, she kept holding his hand until he fell asleep.

"Bang!" A gunshot once again brought vitality to the entire battlefield that had become as silent as death, "Sun Erdan, you bastard, you don't have a bayonet, save some bullets" A rough voice reprimanded the soldier who shot just now. Several soldiers wearing gas masks walked up to Haneda, "Help me, help me" Hiroji Haneda, whose nose and mouth were constantly splattering with blood, stretched out his arm to the visitor. "Hey, there's still a living little devil here, or a middle one. Take him to the sir. The two soldiers roughly grabbed Haneda's two arms and dragged them behind.

This is the power of the dust explosion, Zhuo Fei, who planned all this, was also stunned, before pressing the detonator handle, Zhuo Fei was still worried that his arrangement would have no effect, it turned out that his worries were superfluous, the power of the dust explosion was too strong. While everyone was jubilant and rushed to the streets to clean up the battlefield, Zhuo Fei was left alone in the shop, and he had more important things to confirm.

At the moment when the dust exploded, Zhuo Fei's mind continued to sound a prompt, staring at the store that there was no one, and Zhuo Fei called up a light curtain that kept shining. "Developed, developed." Looking at the data displayed under the light curtain, Zhuo Feile couldn't see his teeth. The merit points that originally exceeded 300 have now exceeded 550 points, and the merit points, which have always been regarded as useless by Zhuo Fei, have exceeded 23,000 points.

Ignoring the upgrade of the light curtain, Zhuo Fei first called up the detailed records of the meritorious points, and carefully looked at the record details of the meritorious points, Zhuo Fei finally figured out why his meritorious points were as high as 23,000 points. Killing the Japanese army is based on the high ground of the official rank to obtain different points, but the majority of the more than 20,000 points is because the dust explosion just now destroyed two armored vehicles of the Japanese army, and for each armored car destroyed, Zhuo Fei can get 10,000 merit points.