英文關鍵字
building
closeup
construction
control
crane
discharge
energy
engineering
equipment
factory
fastening
fixtures
gas
gate
gauge
house
indoors
industrial
industry
interior
machining
manometer
measure
measurement
metal
modern
of
old
on
part
pipe
pipeline
pipes
piping
plastic
plumbing
power
pressure
process
production
pump
steel
structure
system
technology
the
tool
tube
valve
wall
water
work