While He Tao and his son were arguing over whether to observe the trial or watch the live TV broadcast, the newly built Tamengye Military Research Institute was conducting rigorous tests on the improved replacement parts, armor, and electronic equipment delivered by various units. Pen ~ fun ~ pavilion www.biquge.info

The Military Research Institute is further advanced into the mountains of primeval forests than the Tamengye training base, and to the northeast it crosses a saddle-shaped low mountain range, within a five-kilometre-long valley.

On each side of it, there is a large mountain.

The absolute height of the mountains on both sides is not particularly high, and a few peaks are only four or five hundred meters, but they are very steep and wide.

The mountains on the west side are trending northeast-southwest, and there are continuous mountains for more than ten kilometers to the west, until they reach the plain area between Guiji and Mujie. The big mountain on the east side is trapezoidal, located in the northern section of the valley tail is narrower, about seven or eight kilometers, the mountain at the mouth of the valley is relatively thick, up and down ten kilometers, over this mountain, it is the frontier town of Maika, where the army and the base area confronted each other.

The Institute is surrounded by mountains and primeval forests, and there is only one passage to Tamengye in the southwest.

Placed here, the effect of secrecy and anti-espionage is excellent, and with the valley as the center, the surrounding mountains are vertical and horizontal, and it is just right to open the mountain and dig holes, and hide a large number of important military industrial enterprises and research institutions in the belly of the mountain. Protected by mountains and covered by primeval forests, it is difficult to deal a serious blow to enemy planes even if they come to bomb, which further strengthens the security of this military research and manufacturing base.

On the way that Guan Fei came by car with the base area and the domestic expert group, he did not find a single figure. On both sides of the road are long mountains, high and low.

From the car, there are tall and straight primeval forests everywhere, large areas of broad-leaved trees paved green as far as the eye can see, the nearest forest is only a few meters away from the road, sitting in the car can see through the dark and deep trees, see the shrubs, vines, and countless unknown flowers growing in it.

"During the anti-encirclement campaign, we infiltrated behind enemy lines, passed through this valley, and rested here for the night." The driver had participated in the anti-encirclement and suppression operation, and while driving, he painted them how they had penetrated through the primeval forest and infiltrated behind enemy lines, and pointed to the faintly visible fluorescence in the forest, indicating that it was the luminous paint they had sprayed on the trunk of the tree in order to guide the troops forward.

The experts in the car looked in the direction of his finger, and could only see a little faint or visible light through the hidden tree trunks, branches and leaves, and they didn't know whether what he said was true or false. However, everyone had no actual field marching and combat experience, so they naturally listened to it with relish, and nodded their heads again and again, admiring each other.

The road winds and turns, and because it is blocked by the saddle-shaped mountains, it first heads north, bypasses this small mountain range, and then turns southeast, travels three or four kilometers, and finally turns north, and enters the mouth of the valley.

This valley is still very wide, the entrance of the mountain is gentle, about six or seven hundred meters wide, looking ahead, the narrowest place is about two or three hundred meters, the terrain is very wide. The soil in the valley is washed down from the mountains on both sides and accumulated over the years, and the ground is very flat, so as long as the drainage is done well, it is a good place to build a town.

It's just that the soil here is very poor, and it is all red soil with no organic matter.

Judging from the fact that there is not a trace of people here, and there are no houses and fields, it is indeed a barren land, and there are no human settlements.

The convoy had barely turned a hill when it heard the sound of artillery in front of it. A huge sound echoed through the valley, overlapping and overlapping I don't know how many explosions, rolling like thunder.

"Don't be nervous, this is to blow up the mountain and dig a cave for the military industry to settle in in the future." The escort of the car stood in the aisle and comforted.

The experts in the base areas have never been engaged in the military industry before, and they may not be used to it, but these domestic experts are old military workers, so naturally they are not strangers to this at all, and not only were they not frightened, but they leaned in front of the window to look out.

I saw that in the tortuous valley, there were engineers in blue canvas uniforms everywhere, and the preliminary estimate was no less than two or three thousand. They were divided into dozens of teams, and they were digging holes between the left and right mountain walls and firing guns, and then using excavators and forklifts to dig out the blasted rocks, and then using drill rigs with drill bits to peel off the loose rocks around them piece by piece, and expand the hole that was blown up.

When the drill bit is no longer in contact with loose stones, the drill rig no longer excavates slowly, but withdraws, and the engineer steps forward to drill the hole again to place the blast for the next directional blasting.

With the help of continuous blasting and various engineering tools, the hole was quickly expanded to a square of 10 meters, and then quickly extended into depth.

"We have been excavating here since the beginning of the year, and we have already excavated more than 20 large caves with a width of 2 meters and a height of 10 meters. The caves were excavated in a straight line forward, about 200 meters deep into the belly of the mountain, and then a main road was excavated laterally. Then use this main road to continue to dig caves into the belly of the mountain, as workshops, dormitories, warehouses, research institutes and other living and working places. On top of these main roads, many branch roads were dug to connect the upper and lower sides. The escort stood behind the driver and introduced to the experts.

The domestic experts smiled and nodded slightly.

Digging tunnels is not new to China at all, and it is also commonplace.

In the face of the threat of the giant bear in the north, there is no shortage of holes in the country, digging where there are mountains, and piling up mountains where there are no mountains. In the southwest mountains of China, not to mention tunnels that are several kilometers longitudinal and horizontal, it is not uncommon to see tunnels that are tens of kilometers or hundreds of kilometers long.

"Dig deep holes, accumulate grain, and prepare for war, big war, nuclear war!"

Such a propaganda slogan was not shouted less in previous years, and anyone who came from that era is familiar with it. Whenever the situation is tense, some of the more critical experts have been suddenly called out of their posts by the security personnel, and they have not even had time to take a change of clothes, so they hurried to the airport and station to rendezvous, and took the plane or train straight to the hidden hiding point in the mountains, and more than once.

Although this is less done now, the vigilance of the country against the north has not been relaxed at all.

The mountain project built according to the base is just a domestic copy, but the scale is smaller.

Looking out of the car window, they can easily distinguish the dense small holes in the mountain wall, which are the ventilation holes of the tunnel group, which are the skylights, and which are the emergency escape doors. From the pattern and construction method of these tunnels, it can be seen that they have received technical guidance from the domestic engineering troops.

The deeper you go, the more the completion rate of the excavated cave becomes, and the sound of the blasting becomes quieter.

"We started from the valley to set up the defense system and put the more sensitive items in the safest area." The escort explained.

The convoy finally stopped at the valley.

It is said to be the end of the valley, but in fact, there is a smaller valley road, which stretches forward in a zigzag way and does not know where it leads.

"There are a lot of tiny valleys that go through there, and we set them up as an outdoor testing ground. Some artillery experiments, or more dangerous experimental projects, are carried out in those small valleys to ensure safety, and accidents will not cause serious casualties. The escort saw their gaze and explained.

It turned out to be an outdoor proving ground.

The experts nodded, and they could see that there were soldiers hidden in the surrounding mountains and valleys, and this was not an engineer in blue overalls, but a soldier wearing digital camouflage, helmets and body armor, and loaded guns. They were scattered in twos and threes in the outposts on the commanding heights of the surrounding hills, and two teams of sentries with military dogs could be seen patrolling the ridges.

In the dense forests of the mountain, there are occasional metal reflections, and if you look closely, you can see the iconic trumpet-shaped muzzle of an anti-aircraft cannon facing the sky.

That's an air defense position.

Safe, very safe!

The experts looked around a little, but out of suspicion, they didn't look any more.

The convoy was parked in front of a large cavern on the left.

The cave is 20 meters wide and 10 meters high, not to mention that ordinary vehicles can enter and exit, even the launch vehicles loaded with special equipment can easily and quickly enter and exit.

The entrance to the cave has been repainted with cement, but the exterior has been painted with the same shade of red as the surrounding mountains as a camouflage. On the hillside above the entrance of the cave, a large tree with lush foliage was specially transplanted, and the branches and leaves growing out of the trunk of the tree covered the top of the cave entrance like a big umbrella to prevent the target from being detected by aerial reconnaissance.

At this moment, two huge steel doors seal the entrance tightly, leaving no gaps.

The door of the second jeep opened, Guan Fei got out of the car, walked to the door, lifted a heavy steel casing, and entered a line of numbers on the cipher plate on it.

Above the cave, a photographic probe moved, turned left and right, scanned the front and back of the convoy, and then reset.

A few seconds later, there was a rumbling sound, as if coming from underground.

Two steel doors slowly retreated to the sides, revealing a passageway.

Guan Fei returned to the car, the car in front started and drove slowly into the cave, and the cars behind him entered one after another.

When the last car passed, the steel door rumbled again and closed again.

"This is at least two meters thick, and from the cross-section, it is not just simple steel, there are ceramic plates, glass fibers and the like sandwiched in the middle, this is simply super thick composite armor!"

"How high penetration does this have to be to be able to penetrate it!"

The experts talked quietly, but this time, accompanied by the People's Army, they did not open their mouths to introduce them, but only laughed and did not say anything.

After passing through the gate, the experts found that the passage inside was very wide, and two rows of incandescent lights were installed on the top, which illuminated the passage as bright as day, and the car did not feel dark and narrow at all. And on the mountain walls on both sides, they found several holes like shooting holes, revealing the muzzles of several machine guns, the muzzles of the guns slowly turned with the direction of the convoy, and it could be judged that there were people operating behind them.

The convoy had traveled about 50 meters before being stopped by a second steel gate.

Also Guan Fei got out of the car, opened the heavy steel shell on the panel, and entered the password, but this time he also verified the fingerprints and pupils, and the second steel gate was opened.

"Good guy, with the protection of these two steel gates, even a nuclear bomb can't be opened!" One of the experts laughed.

Several experts in the car who had been to the third-line secrecy unit were silent with smiles.

Two steel gates are nothing, three or more have been seen!

Some of the more important national defense tunnels are even reinforced with multi-layer steel plates on the top, not to mention that ordinary aerial bombardment cannot do anything about them, even if they are bombed with nuclear bombs, they cannot be opened.

This is a genuine national defense project!