機器
bearings
big
bogie
coil
corrosion
decomissioned
detail
engine
equipment
factory
frame
freight
goods
heavy
industrial
industry
iron
locomotive
manufacturing
many
mechanical
metal
modern
multiple
object
old
open
operation
parts
production
profile
rail
railroad
railway
speed
steel
stock
technology
track
train
transport
transportation
travel
truck
wagon
wheel
wheelset
work
workshop