英文關鍵字
industry
oil
gas
fuel
pump
equipment
petroleum
production
gasoline
crude
work
well
fossil
facility
energy
petrol
extraction
drill
machine
pipeline
power
sunset
refinery
pumpjack
barrel
pressure
piston
farming
color
dirty
money
closeup
throttle
alberta
rig
supply
environment
crop
regulator
engine
business
valve
industrial