英文關鍵字
bushing
business
clamp
collar
construction
derrick
dirty
drill
drillfloor
drilling
drive
energy
equipment
floor
gas
industrial
industry
kelly
land
machine
machinery
magnetic
mechanic
offshore
oil
oilfield
oilrig
petroleum
pipe
plant
platform
production
rig
rotary
rotate
rotating
roughneck
sky
slip
stick
table
technological
technology
up
well
work