機器
asian
business
businesswoman
cable
car
computer
electric
electrical
electrician
electricity
energy
engineer
engineering
equipment
generation
helmet
industrial
industry
job
laptop
maintenance
male
metal
notebook
operation
paper
plan
pole
power
power station
safety
safety first
sky
station
steel
structure
system
teamwork
technology
tower
voltage
watt
wire
woman
work
worker