| 摘要 |
An environmentally non-intrusive multiple turbine unit (210) for adjustable deployment in water. The turbines are captured in a shroud (260) having an integrally formed augmentor ring (266) and ballasting member (290) to improve efficiency. The multiple turbine arrangement effectively counteracts the rotational counter-torque of individual turbines, thereby enabling stable deployment of the unit without requiring rigid stabilizing structures.
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