英文關鍵字
blue
business
cable
conversion
danger
distribution
efficiency
electric
electrical
electricity
energy
engineering
equipment
facility
generation
grid
high
industrial
industry
insulation
insulator
isolation
line
machine
oil
pillar
pole
power
production
safety
sky
south
station
steel
structure
sub
substation
supply
system
technology
tower
transformer
transmission
utility
voltage
volts
ward
warning
watts
wire