燃やす
boil
boiler
bridge
commerce
commercial
convert
converting
electrical
electricity
gas
generating
generation
generator
green
heat
hot
huge
immense
industrial
industry
iron
ladder
lines
massive
oil
pipe
pipelines
piping
plumbing
power
powerful
sky
steam
steel
steps
technical
technological
toxic
transformation
turbine
walkway
waste
water