機器
alluminium
beer factory
checking
chemical
clean
container
efficiency
engine
engineering
equipment
factory
fermenter
food
glasses
graphs
industrial
industry
lab
laboratory
man at work
manufacturing
medical
medical workers
notes
operability
pharmaciutical
pipe
plastic tubes
pressure
production
readings
room
scientist
serviceability
stainless
steel
storage
tablet
tanks
vessel
workers
working