英文關鍵字
business
construction
controlling
coveralls
crude
drill
drilling
energy
engineer
engineering
equipment
experts
extracting
facility
fuel
gas
glasses
gloves
hardhat
helmet
industrial
industry
inspect
job
machinery
maintenance
mining
monitoring
occupation
oil
oilfield
oilrig
oilwell
outdoors
petrochemical
petrochemistry
petroleum
power
production
progress
project
pump
pumping
pumpjack
repair
rig
safety
skilled
technician
worker