英文關鍵字
building
business
chemical
chemistry
construction
drilling
energy
engineering
environment
equipment
factory
fossil
fuel
gas
gasoline
heavy
industrial
industry
man
manufacturing
metal
mining
natural
oil
oilfield
petrochemical
petrol
petroleum
pipe
pipeline
plant
pollution
power
production
refinery
rig
sky
smoke
steel
storage
sunset
supply
tank
technology
tower
toxic
tube
water
well
work