The design principle of the system, the source of noise and its reduction, and the screen anti interference technique are also presented.
本文不仅介绍了检测系统的设计原理，还讨论了噪声的产生及抑制，以及屏蔽抗干扰技术的应用。
The anti-noise sponges inside the screen of the air filter and the muffler of the induced draft fan should be cleaned or changed regularly.
空气过滤器滤网、引风机消声器的消声海绵要定期清洗或更换。
The anti-noise sponges inside the screen of the air filter and the muffler of the induced draft fan should be cleaned or changed regularly.
空气过滤器滤网、引风机消声器的消声海绵要定期清洗或更换。
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