Big camphor tree base.

Uncle Er persuaded him many times, but Li Yu still insisted on his original idea.

The existence of the northern border can bring considerable benefits to the Dazhang Tree Base.

Whether from a long-term perspective or from a strategic perspective, TC is a very unwise choice.

But.

Li Yu also has his own considerations.

He is not just acting intently.

Originally, the Northern Federation was much larger than the Dazhangshu Base and had very strong war potential.

Once one day the people from the Northern Federation figure out the zombie attraction potion, and even as they send people into the Great Camphor Tree Base to penetrate, one day the Great Camphor Tree Base will face unbearable consequences.

The Northern Federation feels like it is too big to lose its tail.

What's more, the Northern Federation has made too deep a feud, and it has bound one and three sides.

They just killed a few leaders or some of them, but they may not be able to lead others one day. If these people are hidden deep, as time goes by, when they reach a certain height in the Dazhang Tree Base, they will always lead to unpredictable consequences.

This is what Li Yu fears the most.

When doing things, he always cares about cutting the mess quickly.

Only by cutting off the weeds and removing the roots can we avoid countless troubles.

So, he had made up his mind.

TC, it is a foregone conclusion.

.....

Uncle Er saw that he couldn't convince him, so he had no choice but to accept it and began to think about how to achieve more perfection according to Li Yu's idea.

at the same time.

Dazhangshu Base, the second outer city.

A helicopter took off slowly.

In the thin mist, the helicopter slowly flew to an altitude of more than 30 meters.

This height is exactly the height of the wall of the Dazhang Tree Base.

So far, Lao Bi can still see clearly when he looks around.

Although there is fog around, it is not that rich.

Going further up, you will fly into an invisible fog.

Lao Bi tightened his mind and said to He Ma in the cabin: "Prepare to put liquid nitrogen!"

"Okay." He Ma quickly answered.

The helicopter slowly rose again, and soon the helicopter entered a thick fog.

Lao Bi was nervous, and he kept the helicopter firmly and kept a straight upward trend.

Crazy-

He Ma opened the hatch door and buckled the mask he had prepared long ago on his face.

The tube was pulled and the body was tied with a seat belt.

He staggered to the entrance of the cabin.

sir-

Liquid nitrogen was pouring out and sprayed out, sprinkling downward due to gravity and wind blowing.

With the action of liquid nitrogen, the heavy fog under the helicopter slowly dissipated.

When He Ma saw this scene, his eyes were full of excitement.

Sudden.

The fuselage shook violently.

He quickly held the handle beside the machine door with his hands, and operated the liquid nitrogen spraying device with one hand, which was a bit unstable, but he still persisted.

I thought in my mind that after landing later, I had to find something to fix it, otherwise it would be too tiring to hold it with my hands alone.

After a few seconds, the helicopter returned to calm.

The effect of liquid nitrogen spraying is very significant.

Originally, liquid nitrogen fell in high altitudes, which could maximize the dissolution of heavy fog.

Lao Bi looked down through the car window and saw that his vision on the ground had indeed improved a lot.

Excited in my heart.

So he controlled the helicopter to move in the sky.

Turned around a circle.

As the helicopter sprayed liquid nitrogen, everything on the ground gradually became clear.

And this makes people on the wall feel particularly obvious.

Pammer.

Feeling the rain falling from the sky, they looked up at the helicopter in the sky.

Li Yu was also standing on the outer city wall at this time and witnessed all this with his own eyes.

I breathed a long sigh of relief.

The method he thought...is feasible!

So I picked up the walkie-talkie and contacted Lao Bi: "Lao Bi, expand the scope a little, spray liquid nitrogen around the entire camphor tree base, and see how long it will last?"

After receiving the order from Li Yu from the walkie-talkie, Lao Bi was a little unsure, but he still gritted his teeth and operated.

The helicopter's movement range became larger and he flew around the camphor tree base.

The liquid nitrogen sprayed from high altitude is relatively evenly sprayed when the liquid nitrogen is sprayed below with the wind.

It started to rain lightly on the entire base.

Before the end of the world, this is called artificial rainfall, but most of the artificial rainfall uses dry ice.

The entire camphor tree base becomes clearer with the sprayed liquid nitrogen.

And Lao Bi, who was hundreds of meters above the sky, almost jumped up happily when he saw such a clear big camphor tree base.

"Success! We've succeeded!" Lao Bi shouted to Li Yu with some excitement.

Li Yu's mood also improved a lot.

So he picked up the walkie-talkie and asked, "How much liquid nitrogen is left in the helicopter and how long can it last?"

After hearing the question Li Yu asked, Lao Bi quickly asked He Ma behind him, and he got about four-fifths left and could continue to spray for more than twenty minutes.

Li Yu ordered Lao Bi to spray half of the liquid nitrogen in the helicopter before flying down.

He wanted to see what effect could be achieved by spraying half of liquid nitrogen.

The rain keeps falling.

Within a range of 100 meters from the fence, it also started to rain lightly due to the spraying of liquid nitrogen from the helicopter.

However, a hundred meters away, there is still a thick fog.

After more than ten minutes.

The entire camphor tree base is completely renewed in a light rain.

A strange scene was formed, with thick fog around the center of the camphor tree base, but it was raining lightly on the camphor tree base.

In light rain, the view should not be much better than in heavy fog.

Lao Bi slowly landed in the second outer city in a helicopter.

Li Yu was waiting here with a silver box in his hand.

After the helicopter stopped and stabilized, Lao Bi walked out with a smile on his face and walked towards Li Yu.

"City Lord, we succeeded!"

Li Yu nodded and shouted to Lao Bi:

"Quickly fill another helicopter with liquid nitrogen and fuel, and prepare to set out to the oil city later."

He Ma, who was standing behind Lao Bi, quickly walked out and said:

This chapter is not over, please click on the next page to continue reading! "City Lord, can you give me ten minutes? I was too tired to spray with liquid nitrogen just now. I won't be able to hold on for long, and my hands will tremble. Give me ten minutes and I will make a simple stabilization device."

Li Yu narrowed his eyes, turned his head and said to He Bing and Li Hang behind him, "You go and help him, and get another helicopter with a range of 2,000 kilometers."

While Lao Bi and his friends were spraying liquid nitrogen in the sky, Li Hang and others, who were originally at the Second Outer City Machinery Repair Factory, also saw a lot of fog outside dissipated, so they walked out to check the situation.
To be continued...