機器
architecture
area
base
basis
blue
bore
bored
build
cellar
cement
concrete
construct
construction
danger
dangerous
design
drill
engineering
equipment
factory
foundation
ground
groundwork
hardwork
heavy
hole
home
industrial
industry
material
metal
new
pedestal
pile
piling
pillar
pole
site
sound
stake
standard
steel
strong
structure
substratum
tower
underground
urban
work