以下为句子列表：
英文: Based on our two-dimensional approximate theoretical analysis, a transfer function model of the acoustic characteristics of underwater anechoic coating with various backings is established on the low-frequency range.
中文: 摘要在吸声覆盖层水声声管测试的实验研究中，覆盖层背衬的选择对测量结果有重大影响。
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英文: First, in the field of atmospheric dynamics the developments in dynamics of diabatic waves and low-frequency waves, the dispersive effects of turbulence and nonlinear atmospheric waves are re-viewed.
中文: 在大气动力学领域，主要介绍了非绝热波和大气低频动力学、湍流的频散效应和大气非线性波动等方向的研究进展。
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英文: Helps eliminate stage rumble or other low-frequency room noise such as that coming from heating, ventilation, or cooling (HVAC) systems.
中文: 有助于消除舞台上的嗡嗡声或其它来自暖通空调（HVAC）系统的低频室内噪音。
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英文: High-frequency ones can get hit too, but interactions with the solid crust of the neutron star stop the resulting precession much more quickly than for low-frequency ones.
中文: 高频率的进动也可能由撞击产生，不过中子星坚硬的外壳将使这种高频进动很快就停下来。
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英文: In low-frequency warfare, significant events are separated by long periods of relative inactivity.
中文: 在低频度的战争中，重大事件被长时间的、相对而言不活跃的时期间隔开来。
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