自転車発電その1（20W扇風機動作実験）
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Added: 3 years ago
From: 006camille
Views: 5,460
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  • 東北地方大地震

    この技術で復興早まるはず

    この電気を蓄電出来ないか？

    技術ある人 情報求む

    gigahomeit026 11 months ago

  • 次は浜風発電にチャレンジ！

    Equalspaceful 1 year ago

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