英文關鍵字
adsorber
ammonia
background
blue
business
capacity
catalytic
chemical
chemistry
chimney
co2
converter
engineering
environment
environmental
equipment
factory
fertilizer
fuel
fumes
furnace
gas
heavy
industrial
industry
large
machine
manufacturing
metal
mine
oil
petrochemical
pipeline
plant
pollution
power
producing
production
reactor
refinery
shaft
sky
steel
tanks
technology
tube
workshop