Lin Qifan looked at everyone's surprised expressions, shook his head helplessly, and said:

"Don't be too happy, it's not time for us to be happy, you think, why did they give us guns? It's not because they have something better, pistols are dispensable trash in their eyes. ”

Hearing Lin Qifan's words, everyone was silent, as if he had really become a pitiful lamb to the slaughter, and he could be killed by them at any time, but he had no ability to fight back at all.

Lin Qifan continued: "But don't worry, we just need to maintain the existing power supply capacity for them, they mean that I don't go up to compete with them, just stay down with peace of mind." ”

With Lin Qifan's comfort, everyone is no longer so depressed, and now Ma Qiang, who is above, does not know that the power supply room on the second floor of the basement has an access channel that can go up to the ground, and they must leave when the time is almost right.

There must be enough air filters before entering the ground, and now they only have 7 fire emergency hooded gas masks in their hands, and there are no spare air filter packets in them, so they have to make some of their own.

Activated carbon is an important material for survival on the ground after the nuclear war, which can adsorb radioactive dust, filter the radiation in the water body, and even detoxify, the effect is very large, and the production process is not complicated.

There are two kinds of activated carbon, one is simply to remove the carbonized part on the wood or straw after burning, and the other is to make it chemically, but the process is not complicated.

First of all, the wood that can be found is burned into charcoal, knocked into small pieces of charcoal of about 1 cubic centimeter, the small pieces of charcoal are packed into a fine nylon mesh bag, put into a household pressure cooker containing 5% sodium carbonate solution, and boiled at high pressure for about 30 minutes to wash out the oil and dredge the micropores in the charcoal.

After boiling, rinse the charcoal twice with clean water, put it in a 5% baking soda solution and boil it at high pressure for about 30 minutes, rinse it three times with water at about 80°C after taking it out, and then heat it with an electrically heated fried rice plate in the restaurant.

Although the process is a bit complicated, the activated carbon made is very efficient, and then several people packed all the activated carbon into small bags with a length of only 5cm and a width of 2mm, and each person stuffed more than 100 into the backpack.

After the activated charcoal was made, Lin Qifan returned to the hall, reassembled the pistol on the table that had been disassembled into large parts, and fully lubricated the parts of the gun with the lubricating oil from the lubricating generator.

The towels and clothes that had been in contact with the firearms were definitely unusable, although I didn't know if they were contaminated with deadly radiation dust, but Lin Qifan didn't want his hands to be burned by radiation.

As for those pistol bullets, Lin Qifan put them in plastic bags and put a lot of desiccant in the food packaging bags.

Now the time is less than 2 days away from the time when it can be safely reached on the ground, and many things must be prepared in time, especially the protective clothing after going out, ordinary raincoats have no trouser legs, and many places are not convenient to move, which obviously cannot be used as protective clothing for going out.

Anyway, Lin Qifan didn't plan to stay in the underground supermarket, so he simply restored all the power on the second floor of the basement, and took advantage of the bright lights to combine raincoats and some plastic sheets, and sat on a protective suit that could fit the limbs widely, and also made a position that could accommodate a backpack.

The survival backpack also made some minor changes, first sewing a fixed strap on it, reinforcing the joints, and sewing a lot of extra pockets on the outside, as well as clothes, sewing a lot of pockets, which looked like countless patches.

There are also some high-sugar drink powders in the backpack, and when the time comes, the water source on the ground will be extremely precious, to make full use of the water resources, the high-sugar drink powder can replenish energy in time, and also allow the water to do some useful things.

And to go to the ground electricity will also be very precious, not to mention anything else, the power supply of the nail gun must be solved, Zhang Zikang disassembled a small portable generator and removed the power generation unit, and the small gasoline engine was dismantled and installed separately.

The bits and pieces add up to a lot, and in order to have five people outside without any problems in five days, everyone's backpacks have become bulging, like astronauts who have landed on the moon.

In order to prevent accidents, Lin Qifan decided to go to the ground in advance to find a place where they could live away from Ma Qiang and them, but Lin Qifan did not know exactly how to do it.

Just when a few people were about to open the passage and leave, a knock on the door suddenly sounded, Lin Qifan frowned suddenly, only to hear the knock on the door becoming more and more urgent, only to hear Li Xin's roar outside:

"Lin Qifan! You liar! Open the door! If you hadn't lied to us, our brothers wouldn't have gotten radiation sickness! Bastard! Open the door! ”

Hearing Li Xin's shout, Lin Qifan instantly felt bad, he immediately closed the room in the backup power supply room, and shouted to several people: "Hurry up!" Hurry up! They're probably looking for something! These idiots! ”

Hearing Lin Qifan's words, several people's faces suddenly changed, and without thinking about it, they quickly ran up the small narrow staircase, Lin Qifan squatted at the staircase with a nail gun, listening to the louder and louder impact sound outside, and his heartbeat was getting faster and faster.

"Bump!"

With a loud bang, the door was slammed open, Lin Qifan felt that the cold sweat was about to wet the vest, and he cursed in a low voice: "These ungrateful bastards! Since you are ruthless, don't blame me for being unjust! ”

Immediately, Lin Qifan turned the muzzle of the gun and hit several nails at the lubricating oil tank placed on the generator and the spare lubricating oil on the side.

In an instant, the black-brown lubricating oil flowed to the ground, and as soon as the generator was destroyed, there was a crashing sound from the metal door of the power supply room, and a few people who were about to go up to the top of the maintenance passage reacted suddenly Lin Qifan had not come up yet.

"Qi Fan! Hurry up! What are you doing? ”

Hearing Xie Xin's shout, Lin Qifan gritted his teeth, his hand holding the nail gun was already covered with sweat, and suddenly, the door of the power supply room was knocked open.