機器
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3d
3d illustration
barrel
black
blue
business
construction
crude
derrick
diesel
drill
drilling
ecology
economy
energy
equipment
exploration
extraction
facility
fossil
fuel
gas
gasoline
industrial
industry
island
job
market
natural gas
nodding
oil
oilfield
petroleum
pipe
pipeline
plant
platform
power
pump
refinery
resource
rig
rocking
sun
sunset
technology
tool
work