英文關鍵字
activate
activated
adsorption
antioxidant
backdrop
black
bottom
carbon
carbonize
catalyst
charcoal
clean
clear
closeup
co2
coal
coconut
conservation
detail
dioxide
eco
ecology
environmental
filter
fire
granular
graphite
industrial
industry
isolated
lab
laboratories
laboratory
medicine
mineral
monoxide
nature
organic
pattern
pharmacy
powder
powders
production
purification
purifier
recycle
science
texture
treatments
used