Chapter 185

Two double mounted Markham machine guns have been installed, and the gate looks thicker and stronger after upgrading.

In particular, the structure of the gate has changed from push-pull type to lift type. The whole gate has been completely embedded in the wall. If you want to open it without lowering the gate, you have to blow up the whole wall.

After upgrading, the gate, which was originally made of reinforced concrete wrapped with ordinary steel plate, has become a solid heat-treated homogeneous Ni Cr alloy steel plate with a thickness of 30cm.

During the Second World War, the Japanese used this kind of steel as the main armor of the Yamato class battleship, and stacked its thickness to 650mm.

At that time, the armor of Daiwa class main gun was 650mm thick, which could not be penetrated by any gun in the immune zone at that time.

In fact, the Federation found such a steel plate after the war. In order to test the performance of this steel plate, they used the 410 main gun of the Missouri class battleship to carry out zero angle bombardment at a distance of 300 meters before they penetrated such a steel plate.

However, it is almost a century ago. Now, nickel alloy steel has become a kind of ordinary steel which can be bought in the steel market at a low price.

Among the materials collected by Chen Xin before, there are such a number of nickel alloy steel columns, which are sold as raw materials for metal processing.

In Chen Xin's original plan, these materials were used not only to reinforce the gate, but also to reinforce the internal structure of the refuge.

Of course, in Chen Xin's original plan, there was no plan to make the gate into a solid metal door with a thickness of 30cm, and a hollow structure made of a few centimeters of steel plate, which was still reinforced concrete.

But after Ding Ning gave him the note, the inexplicable sense of crisis made Chen Xin choose to turn the gate into solid metal, although it nearly doubled the survival cost of upgrading.

Although Chen Xin's gate is not as thick as the main gun armor of the Yamato class battleship, his enemies also don't have the main gun of the battleship.

As for the use of explosives, it can't affect such thick armor, otherwise there is no need to use armor piercing bullets in war to effectively penetrate the armor of battleships.

Looking at the gate, which can only be described as solid, Chen Xin feels a great sense of security. At the same time, he can't help scratching his head. Now the defense of the gate is enough, but the wall is not as strong as the gate.

However, there is no need to worry too much about this problem. After all, his refuge is underground, and above his head is a mountain more than 200 meters high. The hardness of the thick soil layer will not be much worse than that of metal after freezing. If you want to dig up the frozen soil layer, it will be impossible to rely on manpower.

So now as long as Chen Xin doesn't open the door, no one will want to enter his refuge.

The hydraulic lifting structure of the gate ensures the reliability of the gate, but if there is no electricity, it's a bit hard to open the gate.

Fortunately, the hydraulic mechanism of the lifting column of the gate has an emergency door opening device. If necessary, the liquid inside can be directly discharged to make the lifting column fall instantly and open the gate.

But this is an emergency measure that can only be used once. It can only be used in the most critical moment or when necessary, because once it is done, the door will be closed again.

With such a solid and reliable gate and Markham installed on it as a defensive weapon, Chen Xin is completely relieved of his own safety.

After returning to the shelter and sitting on the sofa in the living room, Chen Xin had enough time to think about the whole story.

First of all, the beginning of the incident should be the attack on No. 2 shelter in Baling County, that is, the mission in which Qin Lan was injured.

Because in this incident, the terrorists who attacked the shelter used suicide attacks, resulting in more than 20 casualties, which attracted the attention of the city government. An investigation team was set up to investigate. Chen Xin's first encounter was also at that time.

Later, the provincial government, which received the notice from the municipal government, was also shocked by the incident. So it sent a special investigation team from the provincial capital Xingcheng to the city, and formed a joint investigation team with the investigation team of the city, and then launched a second trial.

According to Qin LAN, it is very likely that the municipal government had an important clue in the first Mopai, and determined that the terrorist who made the attack was in the area where Chen Xinjia was. Therefore, the second Mopai still included Chen Xinjia.

But there is a doubt, because Qin Lan was injured, Ding Ning was sent to take care of her, and the two were given a month's leave. This happened after the attack and before the municipal government set up an investigation team to carry out the rehearsal.

"Uncle Ding and the special police team knew in advance that it had something to do with me?" Chen Xinmo rubbed his chin and always felt that something was wrong here.

According to the truth, even if Uncle Ding wants Ding Ning and Qin LAN to protect themselves, it should be the first time to make such a decision when he determines that the terrorists are in his own area.

But Uncle Ding gave Qin LAN and Ding Ning a month's leave at the beginning, as if he knew in advance what would happen, and then deliberately gave Ding Ning and Qin LAN a reason to support them.As for the note given to him by Ding Ning, Chen Xin thinks it's quite normal. After all, it's the second time that the arrangement is over. If we want to arrange any action, we should have enough clues and intelligence.

It's just that uncle Ding always loves Ding Ning. In order not to let Ding Ning be in danger, he gave her a holiday before the disaster and asked her to go to Mo Qingyan

When Chen Xin thought of the holiday, he had inspiration and connected several things.

Before the attack, as the captain of the special police team, uncle Ding probably received intelligence or clues from some channels, but he did not know the time and place of the attack, or that the attack would cause so many casualties.

So at this time, Ding Ning and Qin LAN are all at work as usual.

With the time of the attack, Qin Lan was injured, and more than 20 police officers of the special police force and the armed police force were injured or killed. All of a sudden, things became worse.

So at this time, uncle Ding took advantage of Qin Lan's injury and sent Ding Ning to take care of her, and directly gave them a month's leave, which should be intended to let them stay in the relatively safe place of the hospital.

This is why Ding Ning didn't give the note to himself at the beginning, and didn't say anything about moving in with Qin LAN.

But with the two investigations, it is obvious that something happened that Chen Xin did not know, which led to the change of things.

Ding Ning's note is handed over to him at this stage. Obviously, uncle Ding's original arrangement has changed.

This may be a sign of what big action the joint investigation team is going to carry out, otherwise uncle Ding can't put his daughter here, which is likely to be in a refuge within the scope of terrorist activities.

However, this is not necessarily. Chen Xin's fingers are hitting his knees. After straightening things out, he has a lot of clear ideas and new judgments.

What he analyzed just now are the thoughts of the police and the joint investigation team. But if we take the perspective of these terrorists, Chen Xin thinks that they may not come to his refuge.

Because although terrorists are crazy, they are not crazy. Since they can attack official shelters at the cost of more than a dozen lives and make suicide attacks, they must have their own goals.

No matter what the target is, the suicide attack is likely to be just the beginning, because for terrorist organizations, more than a dozen people who have been strictly trained and dare to launch suicide attacks are also very valuable, and can not be wasted so unintentionally.

So the first attack they made is likely to attract the attention of the police and the city government.

Assuming that their goal is achieved, now the attention of the municipal government and the police has been attracted to baling County, it means that the attention of the municipal government and the police to the urban area has declined. Under such circumstances, if terrorists want to launch the next attack, where will they choose?

Chen Xin thinks the answer is obvious.

Thinking of this, he can't help worrying about his friends in the city, especially Mo Qingyan and Mo Qingxin, who lack strong enough defense and have little resistance. If anything happens, they really have no ability to deal with it.

Why don't you let the two of them come here and stay away for a while?

Chen Xin considered the idea, but hesitated.

On the one hand, Mo's sisters may not be willing to come. On the other hand, if he wants to live with five people and four of them are girls, it will be very embarrassing for him.

However, considering the possible danger, Chen Xin thinks that after Qin LAN and Ding Ning come, he should discuss with them before making a decision.

Only in this way, where I live

Chen Xin can't help scratching his head, and finally upgraded the bedroom. As a result, does he still want to sleep on the sofa?

But it's all later. Now Chen Xin thinks that he should be ready for Ding Ning and Qin LAN to come and live. After all, they are two girls. Some things still need to be prepared.

This inevitably makes Chen Xin feel in trouble, but the arrival of Ding Ning and Qin LAN can't be said to be no good. At least they are two people who can work. Although they only live temporarily, they can help themselves to share a lot of things in the shelter.

At least there are a lot of things in the greenhouse. Now someone is helping. Chen Xin doesn't have to be busy from morning to night.

And the shelter with other people, also can be lively, some people with their own chat, night break time can also play games together.

To tell you the truth, it's good to play games alone, but it's better to play with others.

Thinking of these, Chen Xin can't help but look forward to the arrival of Qin LAN and Ding Ning.

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