機器
air
bottle
control
distribution
energy
equipment
facility
factory
fitting
fuel
gas
gauge
heavy
high
industrial
industry
instrument
liquefied
liquid
manometer
manufacturing
measure
measurement
measuring
metal
meter
natural
object
oil
petrochemical
pipe
pipeline
plant
power
pressure
process
production
propane
pump
refinery
science
station
steel
technology
tool
tubing
valve
water
white