機器
action
activity
asphalt
blade
build
builder
circular
closeup
construction
cut
cutter
cutting
diamond
dirty
dust
engine
engineering
equipment
grinder
grinding
horizontal
image
industrial
industry
job
laborer
machinery
maintenance
manual
outdoor
pavement
power
reconstruction
road
saw
sawing
site
slab
space
street
tool
work
worker
workplace