... abatement measure清除措施 Pollution abatement污染治理；减轻污染；沾污减少；污染抑制 noise abatement噪声治理；噪声抑制；减声；抗噪音 ...
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降噪材料按降噪机理可分为阻尼减振材料、吸声材料和隔声材料。
According to the function mechanisms, polymeric noise reduction composites were classified as vibration damping, sound absorption and sound insulation materials.
国外高档客车均采用浮筑地板，浮筑地板具有良好的减振、隔声性能。
High-grade passenger car abroad adopts floating floor with high performance of vibration absorption and sound insulation.
本文首先简要地分析了声激励减阻机理。
The mechanism of reducing aerodynamic drag by acoustic excitation was briefly analyzed.
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