空气动力性噪声由流体流动过程中的相互作用，或气体和固体介质之间的相互作用而产生的噪声。
真空伏辊空气动力性噪声是造纸机的主噪声源。
The aerodynamical noise of vacuum couch roll is the major noise source of paper machine.
人造板机械的噪声主要有机械噪声和空气动力性噪声。
The noise of wood-based panel machinery mainly includes mechanical noise, air dynamic noise, etc.
降低真空伏辊空气动力性噪声是降低抄纸机噪声的关键。
The key point of reducing noise of paper machine is to reduce aerodynamic noise of vacuum couch.
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