sound density

Woven fabrics have sound proof property, weaving density multi-layer fabric can get good sound proof property.

结果表明机织物具有的隔声性能以高密度多层结构织物的隔声效果最好.

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Evaluating the density of cancellous bone using quantitative ultrasound, it's a theory developed for more than ten years in the field of Ultrasonic Diagnosis Technic, broadband ultrasound attenuation ( BUA) and speed of sound ( SOS) are two pivotal parameters of the QUS diagnosis.

在超声诊断技术领域，定量超声骨密度检测理论已发展了十余年，宽带超声衰减（BUA）和超声声速（SOS）是用定量超声（QUS）进行骨质疏松症诊断的最重要的两项参数。

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Conclusion Using the technique of ultrasound diagnosis ( USD) to measure the bone density, BUA ( Broadband Ultrasonic Attenuation) is an im-portant statistic data, SOS ( Speed of Sound) is of no characteristic importance.

结论用超声诊断技术（USD）测骨密度值，声量减弱（BUA）值是具有统计意义的重要参考值，声速（KE）值不具备此特点。

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Nutrient density and INQ are scientific ways of presenting sound information aboutactual merits of foods.

营养密度和INQ是表述食品优点的正确信息的科学方式.

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Nutrient density and INQ are scientific ways of presenting sound information about the actual merits of foods.

营养密度和INQ是表述食品优点的正确信息的科学方式。

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Using a new quantitative ultrasound system speed of sound ( SOS) was assessed to monitor bone mineral density of Shanghai children.

【目的】应用定量骨密度超声仪，测定儿童胫骨中段和桡骨远端的超声波沿骨骼长轴的传播速度（SOS），对儿童的骨骼矿物质密度（BMD）进行监测。

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