The noise of wood-based panel machinery mainly includes mechanical noise, air dynamic noise, etc.

人造板机械的噪声主要有机械噪声和空气动力性噪声。

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Coal powder quality and air dynamic characteristics play an important role in the process of the steady combustion of boiler.

煤粉气流性质和炉内空气动力特性对锅炉的稳定燃烧起着重要作用。

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The knowing noise of the air compressor "s air dynamic is of low frequencies. The reliable data is provided for the noise and vibration control."

并知空压机的空气动力性噪声呈低频特性，这为噪声及振动控制提供了可靠的依据。

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"Catrin Finch is like a breath of fresh air and the harp has become a dynamic instrument to play once more, " said Mr Shiers.

BBC: NEWS | UK | Wales | Mid | 'Finch effect' helps harp develop

The European Union's transport commissioner, Siim Kallas, promised greater co-ordination between the 38 member states of Eurocontrol, the body supposed to integrate air navigation services across Europe, and a more dynamic approach to risk assessment.

ECONOMIST: The effect on business and leisure

The broad lower fenders are aerodynamically sculpted to manage the flow of air to the engine bay and front brakes, whilst reinforcing the powerful, dynamic road presence of the new Lexus signature frontal design.

ENGADGET: Lexus LF-CC Concept shows the future of touchscreen interiors