初夏の八ッ場あがつま湖と八ッ場ダム
Schlüsselwörter
dam,
lake,
concrete,
construction,
water,
hydro,
energy,
nature,
mountain,
tourist attraction,
landscape,
sky,
sunny,
power generation,
environment,
utility,
river,
hydraulic,
running water,
construction,
power plant
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