| 摘要 |
A blade is presented. The blade includes a proximal end and a distal end, and a pronounced camber running between the proximal end to the distal end, wherein the pronounced camber is located in proximity to a trailing edge and on a suction side of the blade, and an amplitude of the pronounced camber at a location varies between about 0.7% to about 1.4% of a chord's length of a cross-section of the blade at said location.
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