英文關鍵字
automation
boiler
cable
chemical
clock
closeup
compressor
connection
construction
control
detail
device
dial
electrical
energy
engine
equipment
factory
filter
fuel
gage
gas
gasoline
heat
industrial
industry
instrument
insulation
liquid
machine
manometer
membrane
meter
motor
oil
parts
pipe
piping
plant
plumbing
pressure
pump
reading
refinery
safety
supply
technological
tools
unit
water