機器
bar
boiler
closeup
compressed
connection
construction
control
dial
engineering
equipment
faucet
fittings
fuel
gage
gauge
heat
home
hot
hydraulic
hypertension
industrial
instrument
manometer
measure
measurement
metal
meter
object
part
pipe
pipeline
plastic
plumbing
pressure
pump
repair
safety
steel
system
tap
technician
technology
tool
tube
valve
water
white
work