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    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:15

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:14

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.7K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:15

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
    Blocking the flow of water to build small hydroelectricity with a screw turbine
    0:10

    Blocking the flow of water to build small hydroelectricity with a screw turbine

     34.8K  views
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