機器
boiler
building
chemical
connection
construction
control
distribution
energy
engineering
environment
equipment
factory
faucet
fuel
gas
gasoline
gauge
heat
indicator
industrial
industry
instrument
line
liquid
manometer
manufacturing
measure
measurement
metal
meter
natural
oil
pipe
pipeline
plant
plumbing
power
pressure
production
pump
station
steel
supply
system
technology
tube
valva
water
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