英文關鍵字
auto
background
battery
business
cable
cables
car
circuit
color
colorful
communication
component
electric
electrical
electrician
electricity
electronic
engine
engineer
engineering
equipment
factory
hand
harness
industrial
industry
isolated
large
light
line
manufacture
manufacturing
mechanic
mechanical
shelves
supply
technical
technology
telecommunications
vehicle
white
wire
wires
wiring
work
worker
mercedes
daimler