機器
air
atmospheric
background
bar
black
chamber
clock
closeup
container
control
device
dial
engineering
equipment
gas
high
hydraulic
industrial
industry
instrument
isolated
manometer
measure
measurement
metal
meter
millibar
monitoring
needle
pipe
pipeline
power
pressure
process
pump
scale
science
steam
steel
system
technology
temperature
thermometer
tool
vacuum
valve
water