英文關鍵字
building
chemical
chemicalindustry
chemicalworkers
chemistry
construction
danger
distillation
distillery
energy
engineering
environment
equipment
explosive
factory
fuel
gas
gasoline
gaspipes
global
globalwarming
heavy
industrial
industrialplant
industry
metal
oil
oilindustry
oilrefinery
petrochemical
petroleum
pipe
pipeline
pipelines
pipes
plant
pollution
power
production
refinery
sky
steam
steel
storage
structure
technology
tower
toxic
tube
work