Detection or Sound Reflection in Rockburst at Deep Mining and Numerical Simulation

Sound Reflection and Sound Shadow Simulation Technology of High Frequency Sonar

高频声纳回波影像仿真技术

The sound reflection coefficient of the material is one of the important sound characteristics.

吸声材料的声反射系数是表征吸声材料的重要的声学特性之一。

Sound reflection and sound shadow of high frequency imaging sonar detecting sea mine underwater was simulated with computer.

对高频图像声纳探测水雷的回波和声影进行计算机仿真。

In use of ray acoustics and recursion relation, the sound reflection coefficients of arbitrarily many plates have been derived.

应用声线方法和递推关系导出任意多层平板的反射系数。忽略耦合水层两边的多次反射后，得到一组适合于瞬态和亮点分析的反射系数近似公式。

In the case of high frequencies, the sound reflection coefficient at sedimentary layer surface is simplified.

文末对高声频情况下的海底上的声反射系数进行了简化。

Sound reflection from layered solid medium with rigid and slip interfaces

具有刚性联接界面和滑移界面的层状固体媒质的声反射

Sound reflection characteristics of a viscoelastic coating with air cavities adhered to a steel plate between water and air

钢板-空气背衬上含空腔粘弹性材料层的声反射特性

Numerical computation of sound pulse reflection from fluid plannar layer systems

声脉冲在液态平面层系上反射的数值计算

The study of sound reflection at the surface of sandwich GFRP in water

水中夹层复合材料表面声反射的研究

The sound reflection in specular direction on a rough surface

不平整水面的镜向声反射

A resolution for sonar beam simulation was arose in 3D space built with OpenGL, given calculation models for both the target range and level of sound reflection, and how to promote the reality of the simulation image.

在OpenGL实现的三维场景中，建立三维空间中声纳波束仿真方案，给出了探测距离和回波强度两个关键问题的仿真算法，讨论了提高显示真实度的方法。

This paper investigates the acoustic scale effects for large size model, which are influenced by structural loss factor, shear, rotatory inertia and surface sound reflection as well as small lump mass.

本文针对潜艇舱段大尺度声学模型，分析了损耗因子、剪切形变和转动惯量、水面声反射以及小质量块所产生的尺度效应。

Study on the Law of Sound Reflection as a Random Location of Source in a Circular-plane Hall

圆形厅堂声源位置任意时的声反射规律的探讨

As the key point of the sound reflection and sound transmission, the acoustic coupling analysis received extensive concern.

而对于声反射和声透射的研究也使得声振耦合问题得到人们的关注。

Data design with valid, invalid data to cover normal processing operations adequately can be prepared.

应该准备一些能充分覆盖正常业务的有效及无效的测试数据.

Field'| 0'contains invalid data. Enter a valid numeric value.

域 “ |0”包含无效数据. 请键入有效数值.

The sling has polyester load bearing fiber and polyeaster outer sleeve for extra durability.

用纱线作为承载芯;化纤外套增加耐用性.

Stainless steel shaft sleeve using the same material.

不锈钢轴的套筒采用相同材质.

Install static-ring components on the long shaft sleeve.

将静环组合件装在长轴套上.

Adding wall shaft sleeve is a normal method in repairing axes.

加轴套修复轴是常用的修复方法.