英文關鍵字
based
bushing
dirty
drill
drillfloor
drilling
floor
gas
industrial
industry
kelly
machine
machinery
mechanic
mud
offshore
oil
oilrig
petroleum
pipe
platform
rig
rotary
rotate
rotating
slip
table
technological
technology
well
work
英文關鍵字
based
bushing
dirty
drill
drillfloor
drilling
floor
gas
industrial
industry
kelly
machine
machinery
mechanic
mud
offshore
oil
oilrig
petroleum
pipe
platform
rig
rotary
rotate
rotating
slip
table
technological
technology
well
work