英文關鍵字
process
device
work
production
hall
unit
raw
material
chemical
fertilizer
manufacturing
plant
metal
container
shovel
workshop
facility
jug
sack
hook
construction
factory
bag
frame
equipment
building
machine
professional
floor
workspace
industrial
technology
manufacture
business
machinery
structure
station
cement
concrete
recycling
technological
complex
site
fabrication
center