機器
blue
boiler
chemical
compressed
connection
control
danger
energy
engineering
equipment
factory
fuel
gas
gauge
heat
household
indicate
industrial
industry
instrument
line
macro
manometer
measure
metal
meter
metering
natural
nobody
pa
pascal
physical
pipe
pipeline
power
pressure
station
steel
tap
technology
tool
tube
two
valve
valves
ventail
white
work
yellow