英文關鍵字
agricultural
assemblage
assemble
assembler
assembling
assembly
bolt
component
conveyor
detail
enterprise
equipment
factory
fixing
grip
hand
heavy
industrial
industry
large
machinery
making
manual
manually
manufacture
manufacturing
mechanic
mechanical
mechanician
metal
metallic
metalwork
parts
plant
screw
shop
tool
unit
work
worker
working
workshop