英文關鍵字
derrick
drill
drilling
energy
equipment
fossil
fuel
gas
horse
industrial
industry
jack
oil
petroleum
pipeline
power
production
pump
rig
silhouette
source
suck
英文關鍵字
derrick
drill
drilling
energy
equipment
fossil
fuel
gas
horse
industrial
industry
jack
oil
petroleum
pipeline
power
production
pump
rig
silhouette
source
suck