英文關鍵字
connecting
repair
classroom
workshop
human
closeup
electricity
electrician
electric
connector
crimp
part
cable
transistor
machine
current
industry
learning
apprentice
macro
electronics
component
soldering
英文關鍵字
connecting
repair
classroom
workshop
human
closeup
electricity
electrician
electric
connector
crimp
part
cable
transistor
machine
current
industry
learning
apprentice
macro
electronics
component
soldering