According to the standard of aircraft noise environment around Airport (GB9660-88), LWECPN (Weighted Equivalent Continuous Perceived noise Level) is selected as noise metrics.

根据《机场周围飞机噪声环境标准(GB9660 - 88)》，以计权等效连续感觉噪声级LWECPN作为机场噪声评价量。

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The outside noise of the stones is perceived inside, it resonate in the box-shaped modules and it's amplified by the metal structure itself.

石头的外部噪声会被内部感知，它在盒形模块中传播并且音量会因为本身的金属结构而扩增。

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Noise, perceived control, perceived freshness and misunderstanding all discussed as possible causes for the apparent disjunction.

对于这样明显的差距，噪音、可察觉的控制、可察觉的新鲜度以及误解作为可能的原因都进行了讨论。

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As sighted drivers do, Mark made active use of his other senses such as sound, listening to the noise the tires generate rolling over the roads, and used the sense of angular and linear acceleration perceived from his inner ear to make judgments and adjustments to the controls of the vehicle.

CNN: Why we made a car for blind drivers