英文關鍵字
building
cable
construction
cup
danger
day
distribution
electric
electrical
electrician
electricity
employee
energy
equipment
foreground
glass
grey
high
industrial
industry
install
insulation
line
man
metal
modern
occupation
people
pole
power
professional
pylon
repair
safety
skilled
sky
stand
station
structure
substation
technology
tower
transmission
voltage
work
worker