英文關鍵字
box
equipment
communication
old
coil
analog
condenser
dashboard
device
radio
retro
station
transistor
ussr
wireless
wires
antique
breaker
capacitor
computer
connection
control
detail
distribution
electrical
electricity
electronic
energy
engineering
fuse
hardware
industry
management
network
obsolete
panel
power
protection
resistor
switch
technical
telecommunications
voltage
relay
technology