英文關鍵字
adult
board
clean
cleaning
closeup
design
designing
device
electric
electrical
electrician
electronic
electronics
engineer
equipment
fix
fixing
flow
flowing
flux
hand
industrial
industry
instrument
iron
laboratory
manufacturing
motor
multimeter
part
people
preparation
prepare
resistor
scientist
semiconductor
smoke
smoky
solder
soldered
soldering
tech
technician
technology
tin
tool
work
worker