英文關鍵字
alternative
bio
biofuel
biomass
block
brick
briquet
briquette
briquettes
business
charcoal
countryside
eco
ecology
energy
factory
fire
fireplace
firewood
fuel
green
group
heat
heating
industry
isolated
lumber
material
natural
package
pile
power
production
resource
ruf
sawdust
warehouse
warm
waste
wood
wooden
work
workflow