A compression wave in decelerating flow steepens.
压缩波在减速流中变陡。
The supplementary restraint equation at the compression wave front is obtained by use of the second critical condition.
由第二个临界条件导出压缩波前的屈曲变形约束方程。
The research discovers that compression wave quality factor of the sands in desert surface increases as the buried depth and the compression wave velocity's increase.
研究表明：沙漠地区表层沙纵波品质因子随埋深、纵波速度的增加而增大。
To decrease the effect of compression wave, the numerical simulation of a three-dimensional viscous flow induced by a high-speed train entering tunnels with a shaft was made.
为了降低噪声的影响，对高速列车穿越带有竖井的隧道时产生的压缩波进行了三维粘性流场数值模拟。
Vector analysis and shock wave theory are applied to the initial phase during which the contact periphery expands more quickly than the compression wave fronts in the droplet.
对于第一阶段运用矢量分析和激波理论关系，建立了适用于高速撞击条件的非线性激波模型。
The criterion of energy transformation and conservation are used to derive the supplementary restraint condition of buckling deformation at the front of axial compression wave.
由能量转换和守恒准则，导出压缩波阵面上的屈曲变形附加约束条件。
The upper portion of the air intake is incorporated with an intake ramp designed to generate a rearward leaning oblique shock wave to aid the inlet compression process.
进气口的上部为进气口混合斜面设计，这样设计的目的是为了产生斜振波以帮助进气压缩过程。
It immediately explodes, transmitting a compression shock wave into the crew compartment, where it strips off "spall" -flakes of metal, some the size of a frisbee-that fly into occupants.
它迅速爆炸，并发射出密集的冲击波到层层穿越到乘员舱，它需要使“残瓦破片”(金属的碎片，一些甚至有飞盘一般大)层层剥落。
The system structure and performance is also given. It presents speech compression algorithm implemented by High Energy Wave Extraction. It also gives out hardware interface and software structure .
介绍了系统结构、性能以及用高能谐次波提取法实现语音压缩的算法，并给出了硬件接口与软件结构设计方案。
A novel electrocardiogram compression algorithm based on minimum root-mean-square error prediction utilizing the correlation of adjacent QRS wave is proposed.
本文提出了一种利用相邻QRS波的相关性进行最小均方差预测的心电图压缩算法。
Through the multiresolution decomposition and compression of operator matrix and seismic wave field matrix, we proposed a new method of seismic modeling in wavelet domain.
通过对算子矩阵和地震波场矩阵进行多分辨分解和压缩，得到了小波域中地震波场正演模拟算法。
When impact compression test is exerted, the pulse shaper has been used to regulate the incidence wave, so that the stress gradient will not be significantly high and the results is acceptable.
在进行冲击压缩实验时采用波形整形器调整入射脉冲，从而使得试件内的应力梯度不致过大，取得了较好的效果。
A shock wave generated by an underground explosion was used to perform the shock compression measurement for the 2169 steel sample.
利用地下爆炸产生的冲击放进行2169钢冲击压缩测量。
This article describes WAVE file, put forward a method of data compression, gives basis and results of compression, results show this method is feasible.
描述了波形音频文件的格式，提出了一种压缩波形音频文件的方法，给出了压缩依据和压缩结果，最终的结果表明压缩方法是可行的。
Compared with the ductile materials, brittle materials exhibit some anomalous mechanical properties under the extreme condition of shock wave compression.
与延性材料相比，脆性材料在冲击波压缩条件下表现出许多异常的力学响应特性。
Shock-wave instrumentation provides an approach for the study of phase transformation during shock compression of the Jilin meteorite.
应用冲击波试验技术研究吉林陨石在冲击压缩期间所出现的相转变。
By the test about the volumetric dilatancy in rocks under the uniaxial compression with ultrasonic, the propagation of ultrasonic S-wave was analyzed in the compressing process of different rocks.
通过超声波对单轴压缩试验中岩石扩容现象的测试，分析了超声横波在不同岩石压缩过程中的传播情况。
A percussion device (7) gives impact pulses to a waveguide (21), where a compression stress wave and a reflected tensile stress wave are generated, which propagate in the waveguide.
冲击设备(7)向波导(21)提供撞击脉冲，在波导中产生压缩应力波和反射的拉伸应力波，应力波在波导中传播。
Experiments prove that the algorithm has a strong robustness to resist wave filtering, JPEG compression and ordinary geometric attack.
大量实验表明，本算法对抵抗各种滤波、JPEG压缩以及一些几何攻击具有较强的稳健性。
This study focuses on the dynamic buckling of a nano crystal copper wire under compression stress wave.
用分子动力学方法和弹性动力学方法研究了纳米铜线的动力屈曲，并对两种方法进行了比较。
In the experiments, two-wave construction of compression-shear waves that propagated into the materials were observed clearly, the longitudinal and transv…
其它位置上量计的测试曲线亦反映了材料对压剪波传播的动态响应特点，可以看到剪切波的衰减规律。
In the experiments, two-wave construction of compression-shear waves that propagated into the materials were observed clearly, the longitudinal and transv…
其它位置上量计的测试曲线亦反映了材料对压剪波传播的动态响应特点，可以看到剪切波的衰减规律。
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