英文關鍵字
alternative
application
checking
connection
consultant
contemporary
corporate
development
device
drone
eco
ecology
electricity
energy
engineer
environmental
environmentally
expert
farm
flying
friendly
future
generator
helmet
industrial
innovation
job
monitoring
planet
planning
power
professional
progress
renewable
resource
safety
security
service
source
specialist
station
sustainable
tech
technician
turbine
uniform
wind
windmill
working