sound density的例句大全

The different degradation efficiency of ultrasonic cavitation combined with Fenton reagent is studied affected by such factors as the different Fenton reagent dosage, the initial pH value, the different initial COD_ ( cr) concentration, and the different sound energy density.

研究了不同Fenton试剂的用量、不同初始pH值、不同初始COD（cr）质量浓度、不同声能密度条件下，超声空化与Fenton试剂联合作用降解废水中有机物的效果。

In experiments, the enclosure walls are lined with high density fiberboard and high sound-absorbing glass wool to simulate different boundaries.

实验中长空间的墙壁分别是高密度板和具有很高吸声性能的吸声棉，以模拟不同的边界条件。

According to the imitation of the curve of sound power measurement error, the method was put forward to determine the size of rectangular measuring surface, the distance from scanning measuring surface to sound source, and the scanning linear density.

根据声功率测量误差仿真曲线，给出了测量机器声功率时矩形测量面尺寸、测量面距声源距离、扫描线密度的确定方法。

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。

Woven fabrics have sound proof property, weaving high 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。

determining the best density of sound negative and sound positive and measuring the density value of high-magenta dye sound track;

确定声底、声正的最佳密度及测量高品红染料声迹的密度值；

or apply the mass effect law of sound transmission loss and select the barrier material of high surface density all will have a significant reduction of the sound pressure level in the shielding area.

应用声传导的质量效应，选用表面质量大的材料作屏蔽，都能使屏蔽区的噪声级有明显降低。

the researches show that the impact of young's modulus on sound transmission loss is more than density and loss ratio;

研究表明：材料杨氏模量对隔声去耦瓦隔声量的影响大于密度和损耗因子对其的影响；

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.

Recirculating aquacultural system has become the development trend for its high density, high resource utilization rate and sound benefit.

循环水产养殖因具有密度高、资源利用率高，效益好等特点，逐渐成为水产养殖业的发展方向。

It indicates that straw-based wallboard has characteristics of low density, good heat insulation and sound absorption.

笔者综述了3种墙体材料生产工艺 、 产品性能及其用途的研究现状和发展趋势.

The structure and properties of fiber of IPP ( Z30S) blent with different content of chemical degrading modifying adduct have been studied by the way of density, velocity of sound, Xray diffraction and stressmeter.

采用密度法，声速法，X射线衍射，强力试验仪研究了化学降解改进剂含量不同的等规聚丙烯IPP（Z30S）共混纤维的结构和性能；

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.

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。

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。

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。

This wave of excess density is sound.

这种过剩密度的波就是声波.