英文關鍵字
background
bright
business
cable
construction
danger
electric
electrical
electrician
electricity
energy
engineering
environment
equipment
facility
frame
generator
gray
helmet
high
industrial
industry
line
lines
link
man
network
occupation
people
platform
pole
power
pylon
repair
safety
service
sky
steel
supply
technology
tower
transmission
urban
volt
voltage
watt
wire
work
worker