機器
black
business
combustible
crude
decadence
decay
economy
energy
environment
facility
field
fossil
fuel
global
industrial
industry
land
material
metal
mine
oil
oil well
oilfield
oilrig
oilwell
old
power
primary
produce
production
propellant
pump
raw
reservoir
rig
rusty
source
station
structure
supply
warming
weathered
well