機器
aerial
aerialview
aggregates
ballast
big
build
bulldozer
civil
construction
dig
digger
dirt
driver
engineer
engineering
equipment
excavator
gravel
heavy
hydraulic
industrial
industry
labor
load
lorry
machinery
mechanical
mining
move
operate
pit
power
road
rock
sand
scoop
shovel
soil
stone
technology
track
tractor
transport
transportation
truck
vehicle
wheel
work