機器
air
asphalt
atmosphere
boremachine
break
breaker
builder
building
compression
compressor
concrete
construction
demolition
destroyer
device
drill
energy
equipment
hammer
heavy
industrial
industry
jackhammer
laborer
machinery
maintenance
mounter
old
panel
patchwork
pavement
paving
pick
pneumatic
power
pressure
reconstruction
renewal
repair
road
roadway
roadwork
sensor
site
street
technology
tool
work
worker