機器
architecture
atom
atomic
block
bridge
building
chain
charge
concrete
construction
crane
development
dome
electricity
energy
engineering
equipment
factory
frame
generation
heavy
industrial
industry
manufacturing
mechanism
metal
modern
new
nuclear
plant
polar
power
production
progress
radiation
reactor
room
rope
rotary
rotation
site
station
steel
strength
structure
technology
urban
work
working