機器
abandoned
airlock
architecture
armored
armored door
bunker
cabin
concrete
corridor
danger
dark
dirty
door
equipment
explore
gateway
hazard
hermetic
industrial
industry
interconnection
iron
light
lock
metal
military
nobody
npp
nuclear
obsolete
old
open
plant
power
protection
radiation
radioactive
reactor
room
rusty
safety
scary
space
steel
subterranean
tunnel
underground
vault
walk