英文關鍵字
boiler
close
energy
engineering
equipment
faucet
fuel
gas
hand
industry
mechanic
metal
open
pipe
pipeline
plumbing
power
pressure
processing
production
resources
room
shutter
system
technology
translation
valve
water
work
worker
英文關鍵字
boiler
close
energy
engineering
equipment
faucet
fuel
gas
hand
industry
mechanic
metal
open
pipe
pipeline
plumbing
power
pressure
processing
production
resources
room
shutter
system
technology
translation
valve
water
work
worker