... agerelated alteration 年龄相关变化 airstream alteration 气流特性变化 alter---alteration 改变 ...
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揭示了气流流动特性和厢式货车气动阻力特性之间的关系；厢式货车基本结构参数变化时阻力特性的变化规律。
The relationship between airflow characteristics and aerodynamic drag and the variation of aerodynamic drag with basic structural parameters were obtained.
根据数值研究结果分析了不同弯静叶方案下级内流动特性、气流参数的变化，给出了四种静叶方案的级效率。
The characteristics of the flow and the variation of the parameters are analyzed according to the numerical solvers. The efficiency of the stage with four different stators is presented.
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