英文關鍵字
digital
electrical
electrician
electricity
electronic
equipment
industrial
industry
tester
use
electric
maintenance
measurement
multimeter
test
tool
device
electronics
engineering
hand
profession
technical
technology
ampere
check
connect
display
indication
inspection
measure
meter
rectifier
resistance
special
station
resistor
system
silicon
engineer
fix
fixing
instrument
technician
child
kid
father
son
two
enthusiasm
skill