英文關鍵字
unit
petroleum
gasoline
platform
well
exploration
fuel
machinery
gas
production
rig
pump
up
oil
safety
job
machine
steel
worker
floor
power
connection
drilling
pull
mining
derrick
industrial
tool
pipe
ecology
oilfield
minerals
work
energy
barrel
drill
mud
industry
business
technology
extraction
torque
rotary
sunset
metal
equipment
plant
driller