英文關鍵字
building
business
chemical
chemistry
clouds
construction
contemporary
drilling
energy
engineering
environment
equipment
exploration
exterior
factory
fuel
gas
gasoline
industrial
industry
manufacturing
mining
natural
oil
people
petrochemical
petrol
petroleum
pipe
pipeline
plant
pollution
power
production
raw
refinery
rig
sky
smoke
station
storage
supply
tank
technology
tower
toxic
tube
well