随着速度的增加，高速列车空气动力学问题也显露出来，需要加强对气动特性的分析。
With the increase of speed, aerodynamic problems of such trains are emerging. Aerodynamical analysis has got to be strengthened.
随着速度的增加，高速列车空气动力学问题也显露出来，需要加强对气动特性的分析。
With the increase of speed, aerodynamic problems of such trains are emerging. Aerodynamical analysis has got to be strengthened.
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