英文關鍵字
1080p
1920x1080
blue
cable
close
communication
danger
day
distribution
electric
electrical
energy
equipment
high
industrial
industry
insulation
insulators
iron
isolator
line
metal
nobody
outdoors
power
reduce
rural
russia
settlement
sign
single
sky
snow
snowdrift
station
steel
supply
technology
video
village
voltage
volts
winter
wire