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