英文關鍵字
blockage
bundle
chemical
clean
condenser
cooling
corrosion
engineering
equipment
exchanger
exchangers
factory
heat
high
industrial
industry
insertion
jet
maintenance
mechanical
metallic
petrochemical
pipe
plant
power
pressure
production
recovery
refinery
repair
rusty
shutdown
splashing
steel
technology
tube
tubes
water
work
worker
workers