ソーラーパネルの付いた風向計
Schlüsselwörter
eco,
ecology,
energy,
clean,
science,
solar heating,
solar panel,
technology,
panel,
science,
environment,
home,
live,
brownout,
solar,
solar cell,
electricity,
battery,
power,
power generation,
wind,
weathercock,
life
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