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通过风洞试验研究了斯太尔邮政车外形结构参数变化时的气动阻力特性；并对不同型式的导流罩的减阻效果进行了试验研究；为该车种的变形设计提供了依据。
Through the wind tunnel test, the aerodynamic drag characteristics of the Steyr postal vehicle were studied. The drag reduction effect of different types of deflector was tested and the basis for deformation design was provided.