燃やす
appliance
background
black
blue
burner
business
butane
chemical
construction
cook
danger
dark
domestic
energy
engineering
equipment
factory
fire
flame
flammable
fuel
gas
glow
glowing
heat
hot
industrial
industry
kitchen
light
metal
natural
oil
oven
pipe
pipeline
plant
power
propane
refinery
sky
steel
technology
tube
warm
water
work
yellow