英文關鍵字
assemblage
assemble
assembling
assembly
billet
blank
bracing
clamp
clip
equipment
factory
industrial
industry
install
instrument
iron
job
large
machining
manual
manufacturing
mechanic
metal
metallic
mounting
part
plant
processing
product
screw
secure
securing
shop
specialized
steel
table
tool
unit
use
work
worker
workers
workman
workpiece
workshop