| 摘要 |
A current power plant including a shaft mounted turbine wheel for employment in water current, a housing adjacent said impellar and to which the shaft extends, a ramp positioned on the upstream side of said impellar, a frame on which the turbine wheel is mounted, which frame means is mounted by rollers on a tract such that the impellar and frame may be rolled on the tracks inside the housing, whereafter doors are closed, and water around the turbine wheel may be pumped out to facilitate turbine repair.
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