根据计算出的叶片宽度，画出螺浆式风扇叶片的截面形状。
The section shape of spiral blade of fan is drawn according to the calculated width of blade.
在导板优化基础上，对给定产品规格范围进行叶片宽度的优选设计。
Further, the optimum design for blade width is carried out within the given range of product size.
在导板优化基础上，对给定产品规格范围进行叶片宽度的优选设计。
Further, the optimum design for blade width is carried out within the given range of product siz...
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