機器
base
bucket
bulldozer
business
coalmine
commercial
companies
construction
economy
energetics
energy
engineering
excavator
exports
factory
fossil
import
infrastructure
installation
ironworks
landmark
loader
loading
materials
mineral
mining
ore
outdoors
pile
poland
power
powerhouse
production
service
shovel
site
station
storage
technology
terminal
train
transport
transshipment
unloading
vehicle
wagons
wheel
works
yard