機器
asia
asian
bay
building
chemical
chemistry
city
cityscape
construction
day
energy
engineering
factory
gas
gasoline
heavy
industrial
industry
japan
japanese
kawasaki
manufacturing
metal
oil
petrochemical
petroleum
pipe
pipeline
plant
pollute
pollution
power
pressure
production
pump
refinement
refinery
resources
stainless
station
steel
supply
tank
technology
tokyo
tower
town
tube
worker