機器
air
chemical
cold
compressor
detail
distribution
electric
electricity
energy
engine
engineering
equipment
filter
fuel
gas
gas production
gas purification
high pressure
hose
industrial equipment
industry
infrastructure
instrument
instruments
line
measure
measurement
metallic
new
object
oil
oil refinery
pipe
pipeline
plant
power
pressure
pressure gauge
processing
pump
radiator
science
stainless
station
system
technology
thermostat
valve
work