英文關鍵字
pump
water
system
room
equipment
heat
piping
electric
steam
liquid
manometer
industrial
hot
boiler
circulation
construction
pipes
control
motor
technology
tube
valve
vessel
feed
centrifugal
exchange
engine
economizer
deck
mechanism
duplicated
panel
production
auxiliary
energy
consumption
condensate
oil
coupling
high
plant
transfer
hvac
valves
unit
gas
protection
red