英文關鍵字
antarctic
arctic
area
area51
army
building
bunker
center
cold
computer
computers
development
facility
farm
freezing
government
ice
industrial
industry
lab
laboratory
locker
lockers
military
nuclear
radiation
research
room
science
scientific
secret
server
site
storage
studying
technology
temperature
testing
underground
unit
units
viral
virus