本风力机能减小阻力，风能利用率高。
The wind machine can decrease the resistance and improve the wind energy using ratio.
该实用新型利用桨叶合理自转有效克服风阻，提高风能利用率。
The utility model USES the reasonable rotation of the blades to overcome windage resistance effectively and to increase the utilization rate of wind energy.
具有结构简单、体积小、成本低、工作稳定性好、风能利用率高等优点。
The vertical wind power generator with the wind covers has the advantages of simple structure, small volume, low cost, good working stability, high wind energy utilizing rate, etc.
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