機器
alignment
base
boss
building site
civil engineering
compacting
compactor
down
earthwork
flatten
footwear
foreman
foundation
gravel
ground
hole
industrial
industry
inside
inspection
job
legs
level
low
manage
operate
people
plate
power
punch
quadratic
rammer
ramming
safety
sand
shape
shoes
site
soil
square
tamp
tamper
tamping
trench
vibrating
vibration
vibrator
work
worker