MTL - My Post-Apocalyptic Shelter Levels Up Infinitely!-Chapter 8 Design ventilated lighting

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   "Let’s first think about how to renovate the ventilation system of the base. This is a big problem for underground shelters."

   Sitting on a wooden chair with a slightly shabby bottom, Somo began to recall the knowledge of the civilized age.

   and the design of shelters in major doomsday movies...

   Underground shelters require a large air filtration and regulation system, but any ventilation ducts that are opened outside will become a safety hazard.

   So in Somo’s concept, it is best to use an internal circulation system, but the premise is that water and electricity can be obtained, so that oxygen can be produced by electrolysis, which makes it possible for the internal air circulation of the entire facility.

  Of course, it cannot be completely sealed from the outside world. Such a completely sealed environment has extremely poor stability, and ventilation holes to the outside world are still necessary.

   For concealment, this kind of vent should not be too big, and there should be a sealable switch that can be closed at any time.

   If it is not a restriction of terrain, the best solution is to set the vent under the rock that will only be exposed at the low water level of the river bed, or on an unmanned island.

   These slender pipes can draw purified and filtered fresh air into the bunker, and can be closed in a short time, using internal circulation.

   But given the current conditions and equipment in the shelter, this idea can only be an idea.

   After checking a circle of items currently on sale on the trading channel, Somo decided to use the most mechanical design.

  Using the periscope structure of a submarine.

   A window with dual functions of ventilation and light was opened in the center of the refuge.

  The specific design is to dig out a hole in the front of the shelter and install glass with better light transmittance.

   and put holes in the glass for ventilation to ensure that the air can circulate through the pipes.

   Follow the dug hole down, and a "Z"-shaped turning hole can be made in the middle of the hole.

   Two plane mirrors that are parallel to each other and form a 45-degree angle with the incident light are installed in the "Z"-shaped hole. Through two reflections, the incident light is transmitted to the refuge to solve the daytime lighting problem.

  After the first layer of ventilated glass, a mechanical explosion-proof glass can be designed to ensure that the explosion-proof glass can be closed in the event of a disaster to prevent liquid or toxic air from flowing in.

   Such a simple design, even a high school student can come up with it, but it takes a lot of trouble to implement it.

   There is no matching tool. I want to go to a shelter five meters deep under the ground while ensuring accuracy, but it is a big project.

but...

   "I have a system!"

   With the current understanding of the system, Somo has thoroughly understood the gameplay of the system.

   When there is no material, the system wants to use survival points to create materials out of thin air, which is extremely costly.

   But when you have the materials, the function of the system is more similar to the role of the construction team, and it only takes a small amount of survival points to achieve the purpose of upgrading.

   After contemplating the feasibility, Suma opened the trading channel.

   Currently, he can use the following resources:

   Ordinary mineral water (1000ml), Youneng water (600ml), 10 kilograms of big white bread.

   As for the remaining pet eggs and energy bicycle drawings, he does not intend to trade them.

  Trading channel.

  【Seller: Su Mo】

  [Trading item: 50ml Youneng Water]

   [Items needed: explosion-proof glass]

   [Remark message: Water that can strengthen the body, don’t miss it when you pass by, only two units of glass, good quality private chat]

  ...

  【Seller: Su Mo】

   [Trading item: 15ml mineral water (up to 975ml)]

   [Items needed: 1 iron block (single person can exchange 1/1 times)]

  【Remark message: Each person can only complete one transaction】

   After the two items were successfully put on the shelves, Somo spent 25ml of water to purchase two units of mirrors with good reflective properties and used up all the ordinary mineral water.

   Somo exchanges 15ml of water for 1 iron. Although it is an extremely black-hearted merchant behavior, for some players struggling with life and death, it is no less than a savior behavior.

   In addition, the reason why everyone can only trade once, Somo also has his own plan.

   Water is now as liquid gold. What he wants is to be consumed, not to be bought and hoarded by some interested people.

  World chat channel.

   "For those who are short of water and have iron blocks, go to the trading channel and see, Su Shen is selling water again! One person can only trade once, hurry up!"

   "Fuck, Sushen atmosphere!"

   "Hehe, it's too late. Fortunately, I followed Su Shen's personal channel in advance and only grabbed a sip of water. I didn't even look at Su Shen's 400,000 fans now. Can you passers-by grab it?"

   "Where did Somo get the water? Yesterday, I spent 700ml to buy the illustrated book, but today it is 1000ml to collect iron. Is it too much?"

   "Hurry up and see, the nether energy water that Su Shen hangs can actually strengthen the body and cure diseases. As long as the explosion-proof glass, who can quickly change it!"

   "Oh, people are more popular than others. I dug for a whole morning without getting a drop of water. I'm so thirsty."

   "..."

   There is only one speech per day, and a large group of people gather on the world channel to discuss, not to mention the grand occasion of the regional channel.

   Even Somo’s personal private messages at this time have been squeezed.

   First of all, it took less than two seconds to complete the transaction for the iron nugget purchased on the market. The 65-unit iron nugget was lying quietly in the inventory at this time.

   There are countless people holding other resources, yelling for a sip of water.

   "Water is so popular!"

   Sumo thought to himself.

   In the past two days, other people are selling water with resources, but he is the only one who exchanges water for resources. Naturally, he seems to be unique.

  Using the filtering function in the private messages, Somo used the keyword iron to filter out 80% of the useless private messages.

   was using the search, picked out dozens of private messages with explosion-proof glass, and started to look it up.

   After flipping through many private messages that wanted to buy more water with ordinary quality explosion-proof glass, Somo finally flipped to a dazzling one.

   Feng Mengyue: "Su Shen, I have a piece of ordinary quality explosion-proof glass, but I think you will definitely not appreciate it. If you are willing to increase the price, I can trade you a piece of excellent quality and a piece of rare quality explosion-proof glass."

The head of    is a woman with a delicate face and a heroic face.

   Seeing Sophisticated and Rare, Somo frowned and smiled.

   The current quality classification is temporarily divided into five levels: ordinary, excellent, sophisticated, perfect, and rare.

   Feng Mengyue's first-class female classmates were able to get rare-quality explosion-proof glass on the second day of the start, which is evident in their strength.

   "You will increase the price as soon as you speak, but if you don't take the initiative to quote, it seems like a difficult figure"

   Sumo shook his head, but he was not fooled, and the anti-general replied.

Sumo: "You should understand the current value of Nether Energy Water. There are so many things on the market, but the only thing that can improve your physique is me. As for the explosion-proof glass, I bought it for refuge. It doesn’t matter if the windows are better or worse."

   Feng Mengyue: "Is 300ml all right?"

   Somo: "Don't even think about it, just two glasses, not worth so much, if you don't want it, I will drink it in the afternoon"

   Feng Mengyue: "I think about it"

   Seeing the other's reaction, Somo laughed blankly.

  Only he is selling You Neng Shui in the market. It is an absolute seller's market. Once he decides not to sell, the buyer can only stare.

   Two minutes later, news of Feng Mengyue came again.

   Feng Mengyue; "I am adding one piece of information to two pieces of glass, 300ml of nether energy water"

  Sumo: "What information?"

   Feng Mengyue: "How I got the information about these glasses"

   Looking at the chat box, Somo thought for a while, and then chose to agree.

  In the last days, materials are valuable, and information is price.

   is like killing a chameleon. If there is not enough information, I am afraid that he can only deliver food in the past wearing a suit.

   Hang up on the private trading channel, upload 300ml of You Energy Water to the designated seller, and the transaction is completed.

   [Record]: You have lost 300ml of yoenergy water.

   [Record]: Congratulations on obtaining explosion-proof glass (excellent)*1, congratulations on obtaining explosion-proof glass (rare)*1.

   [Record]: Whether to extract glass information

  "Extract"

   The voice fell, and a voice was played in the empty refuge.

"There will be ruins refreshed from time to time in the wilderness. When I got up today, there was a mysterious ruin refreshed next to me. It looked dangerous inside, so I only found a few pieces of glass on the outside, and I wanted to continue exploring. When the ruins suddenly disappeared"

  

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