英文關鍵字
assembling
cable
cables
capacitor
check
closeup
component
components
device
digital
disassembled
electric
electrical
electronic
electronics
engine
engineer
engineering
equipment
equipments
fixing
hands
industry
maintenance
male
man
metal
nobody
objects
power
professional
repair
repairs
resistors
screwdrivers
shop
soldering
tech
technical
technician
test
tool
tools
various
wire
work
workplace