機器
big
blue
business
connector
construction
derrick
environment
equipment
exploration
extraction
facility
field
fossil
frame
fuel
gas
gasoline
generation
heavy
huge
industry
jack
land
landscape
landscaped
large
machinery
manufacturing
oil
oilfield
petroleum
physical
power
pressure
pump
pumpjack
reservoir
resources
rig
rural
scene
sky
steel
sun
sunset
supply
well
work