英文關鍵字
3d
abandoned
animation
background
being
boiler
building
buildings
chemical
construction
design
detail
drawing
drawn
energy
factory
floor
frame
fuel
gas
great
industrial
industry
metal
model
oil
old
pipe
pipeline
pipes
piping
plant
plumbing
power
production
ready
rendering
showing
site
steel
structure
technical
technology
wire
work