英文關鍵字
assemblage
assemble
assembling
assembly
bolt
enterprise
equipment
factory
handle
human
industrial
industry
installation
machine
man
manual
manufacturing
mechanic
mechanical
mechanician
metal
metallic
metalwork
plant
professional
securing
thandle
tighten
tightening
tool
torque
tshape
unit
using
work
worker
working
workman
workshop
wrench