英文關鍵字
appliance
assembling
assembly
automotive
business
closeup
component
conveyor
copper
detail
device
electrical
electricity
electronic
engine
engineer
equipment
factory
gloves
hand
hands
hardware
industry
installation
job
line
machine
machinery
manual
manufacture
manufacturing
mechanic
metal
operator
production
professional
technician
technology
wire
work
worker
working
workshop