以下为句子列表：
英文: Besides of the functions of channeling fresh air to the engine efficiently and filtering particulates from the air, the air cleaner should be able to reduce the intake noise effectively.
中文: 摘要发动机进气系统设计除了满足进气和空气滤清要求外，通常还要求能够有效地降低进气噪声。
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英文: Designing air cleaner with good performance of noise reduction is one of the effective ways for the intake noise control.
中文: 设计消声效果良好的空气滤清器是控制发动机进气噪声的有效措施之一。
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英文: In view of that the plane wave theory is suitable only in lower frequency range, the three-dimensional finite element method is applied to analyze the acoustic characteristics of air cleaner in the present study for broadening the frequency range.
中文: 由于一维平面波理论只适于低频分析，为了扩大分析的频率范围，采用了三维有限元数值方法分析空气滤清器的声学特性。
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英文: This rear view of the same company shows the air recognition flags carried on the stowage bins, and Feifel air cleaner on the rear hulls.
中文: 从后面观看帝国师第8连的虎式坦克显示了盖在储藏箱上用于空中识别的国旗，及尾部的引擎过滤器。
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