It was expected that drawing speed obviously influenced the sectional shape of products.
计算结果表明：牵引速率对密封条的挤出形状有很大的影响。
The experimental parameters were sectional shape, section size and layers of FRP jackets.
试验参数为钢管截面形状、截面尺寸和包裹FRP的层数。
It is confirmed that the rear wing with proper sectional shape could improve the wake structure and aerodynamics characteristics.
计算结果表明，尾翼的加装可以改善尾流结构，而选择合理的尾翼剖面形状，则能使得气动特性得到最佳改善效果。
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