機器
air
automated
breathing
change
chemistry
clean
control
cylinder
dust
engineer
engineering
environment
equipment
facility
factory
filter
filtration
gas
health
industrial
industry
machinery
maintenance
manufacturing
medicine
motor
particle
pipe
plant
pollution
power
production
purification
purity
recycling
sanitation
service
steel
storage
surgery
system
tank
technical
technology
treatment
tube
wearing