英文關鍵字
against
alternative
check
checking
construction
data
development
device
ecology
efficiency
electricity
electronic
energy
engineer
focused
helmet
industry
inspector
machinery
maintenance
male
man
mobile
modern
nature
note
phone
plant
professional
project
renewable
repair
smartphone
staff
standing
sun
tablet
technician
turbine
using
wind
windmill
wireless
work
worker
working