英文關鍵字
azerbaijan
baku
business
closeup
conservative
construction
counterweight
crude
derrick
donkey
drill
drilling
energy
equipment
exploration
explore
extract
extraction
field
gas
gasoline
industry
jack
machine
machinery
money
natural
nobody
nodding
oil
oilwell
old
onshore
output
petrol
petroleum
pipeline
plant
platform
power
production
pump
pumpjack
resource
sunny
supply
well
working