英文關鍵字
business
conduit
construction
contemporary
control
energy
engineering
equipment
extraction
factory
faucet
field
fossil
fuel
gas
gasoline
gate
gauge
heavy
industrial
industry
line
manufacturing
metal
natural
oil
petrochemical
petrol
petroleum
pipe
pipeline
piping
plant
power
pressure
processing
production
pump
raw
refinery
resources
station
steel
structure
system
technology
tube
valve
water
well