作者: Thomas Conroy , Jared Quilter , David Oliphant , Todd Andersen
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摘要: An apparatus used for maintaining a wind tower structure wherein the may have plurality of legs and be configured to support turbine above ground in better position interface with winds. The lift carrying objects guide system drive mechanically communicating primary cable, rail or other first elongate member attached structure. transmit forces that move relative cable thereby A control included controlling amount direction power into causing said such moves