英文關鍵字
acrylate
array
circuit
closeup
coil
components
detail
device
electric
electrical
electricity
electromagnetic
electronic
electronics
electrotechnical
electrotechnology
engineering
equipment
factory
high
industrial
industry
insulate
lots
manufacture
manufacturing
many
part
pour
process
production
reel
resin
tech
technology
transformer
voltage
work
working
workshop