| 摘要 |
The airlift comprises an engine-propeller unit and means for retention of the engine-propeller unit relative to the earth's surface, fixed on the above unit in the axis of rotation upward of the center of gravity of the engine-propeller unit. The means for retention of the engine-propeller unit relative to the earth's surface comprise solely a wire rope or a wire rope and an arm fixed inside the engine-propeller unit, or a wire rope and a frame embracing the engine-propeller unit fully or partially.
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