©WebNovelPub
PREVIEW
... omo 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 possibl ...
YOU MAY ALSO LIKE