機器
alloy wheel
auto part
axle
brake
brick
building
bumper
car
cargo
diesel
drive shaft
engine
freight
freight car
hardhat
headlight
industry
iron
locomotive
logistics
metal
mode of transport
motor
no person
outdoor
platform
public transport
railroad car
railway
rolling
rolling stock
rusty
shipment
spoke
station
steam engine
steel
terminal
track
train
train station
transport
transportation
transportation system
travel
truck
urban
vehicle
wheel