機器
activity
architecture
bank
basket
bucket
build
building
business
coastal
construction
dam
dig
digger
digging
drive
engine
engineering
equipment
erosion
excavation
excavator
filled
grade
grating
ground
heavy
hydraulic
industrial
industry
land
load
loader
mekong
moving
prevent
protected
river
rock
sand
scoop
security
shovel
side
site
soil
steel
stone
strong
structure
surface
tractor
truck
vehicle
wall
water
wire
work
working