英文關鍵字
accident
apartment
appliances
black
board
broken
burn
cable
circuit
closeup
computer
current
damage
danger
dangerous
device
electric
electrical
electricity
engineering
equipment
error
explosion
faulty
fire
flame
fright
heat
household
ignition
loss
networks
old
overheat
phase
power
property
reason
short
supply
voltage
wiring