英文關鍵字
computer
graphic
design
micro
board
connection
electric
electrical
electricity
technology
communication
device
electronic
digital
electronics
radio
drawing
pad
education
project
track
production
draft
engineering
technical
video
engineer
layer
signal
component
animation
scheme
wiring
chip
circuit
pcb
printed
conductor
drafting
tracing
microelectronics
assembly
cad
placement
schematic
multilayer
aided
printed circuit board
radionics