英文關鍵字
alternative
assembles
base
batteries
battery
blue
construction
drill
eco
ecology
economical
efficient
electric
electricity
energy
engineer
environmental
equipment
farm
fixing
green
helmet
industry
installer
installing
job
maintenance
man
metal
modern
motion
panel
panels
photovoltaic
plant
power
process
professional
project
reflective
renewable
repairman
screw
slow
solar
station
system
technician
technology
vest
work
worker
wrench