機器
backhoe
big
bulldozer
components
connection
construction
detail
digger
dredger
energy
engineering
equipment
excavate
excavation
excavator
heavy
hose
hydraulic
industrial
industry
iron
loader
lock
machinery
mechanical
metal
mover
nobody
part
pipe
power
powerful
pressure
pump
rubber
rust
rusty
site
stabilizer
steel
system
technology
tool
tractor
tyre
valve
vehicle
vintage
work