機器
air
auto
background
boiler
car
control
device
dial
energy
engineering
equipment
gas
gauge
icon
illustration
indicator
industrial
industry
instrument
isolated
maintenance
manometer
measure
measurement
metal
meter
object
oil
pipe
pipeline
power
pressure
pump
repair
scale
service
steel
stress
system
technology
tire
tool
tyre
vacuum
valve
water
wheel
white