综合气动性能最佳的高速列车头部形状，可有效地降低空气动力学现象对列车运行和周围环境的影响。
The nose shapes of high-speed trains with optimal synthetic aerodynamic performance can efficiently reduce the influence of the aerodynamic phenomena on the train operation and the environment.
分析了高速滚动轴承在转速波动这一非平稳状态下的运行状态，研究了转速波动对轴承运转性能和失效模式的影响。
The performance of high speed rolling bearing was studied under unstable conditions of rotation speed fluctuation, and the failure modes of the bearing were analyzed under such conditions.
为了分析国产化高速磁浮车辆的试验线路运行性能，开展了小半径曲线通过性能动态仿真研究。
In order to analyze the dynamical performance of Chinese-made high-speed maglev vehicle running on the test lines, the dynamical simulations of small radius curved-track negotiations were carried out.
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