英文關鍵字
industrial
technology
manufacturing
tank
chemistry
engineering
compressor
pump
beam
pipeline
chemical
production
workshop
powerful
engine
reaction
factory
equipment
effective
work
maintained
line
material
process
gas
reservoir
system
stainless
pipe
metal
plant
service
distillation
machine
tube
connect
pressure
medical
pharmaceutical
refinery
science
complex
business
treatment