The paper chooses the appropriate muffler, and experiments with the capability of sound absorption material, and designs the dustproof project.

本文通过选择合适的消声器以及吸声材料实验和防尘方案的设计。

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The major noise control techniques are conduit sound insulation and absorption and setting up a muffler etc.

其主要控制技术有管道隔声和吸声、安装消声器等。

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