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sonic velocity
相关语句
  声速
     The HSPE monofilaments are 6.20% and 76.8% bigger than the common PE monofilaments in crystallization and sonic velocity value, respectively.
     HSPE单丝的结晶度和声速值比普通PE单丝分别增加了 6.2 0 %和 76.8% ;
短句来源
     However,sonic velocity of rock keeps the same preshot average value outside 38-40m/kt1/3 from the shot point.
     然而,距爆点38~40米/千吨~(1/3)以外,岩石的声速与爆前的平均值是一致的,即不受击波作用影响。
短句来源
     In this paper, a new method for analysis of residual stress is presented based on acoustroelasticity theory and one-demensional inverse problem theory on sonic velocity.
     本文基于声弹性理论和一维声速反问题理论,提出了一种残余应力分析的新方法;
短句来源
     We have observed that there are ultrasonic attenuation peaks in both α and b directions around 130 K, that the sonic velocity increases linearly with the decrease of the temperature and that there is a note-worthy nonlinear change of velocity in c direction around 165 K.
     观察到在a方向和c方向,超声衰减在130K附近有一个衰减峰; a方向的声速变化随温度降低线性增加,而c方向上在165K附近声速变化的斜率有明显的变化。
短句来源
     Sonic velocity in 4 kinds of polymer solutions with different concentrations and water was measured,which proves that 1MHz of ultrasonic wave has the similar velocity in both the 4 solutions and water.
     分别对不同浓度的 4种聚合物水溶液与水进行声速测定 ,认为 1MHz超声波在 4种聚合物溶液与水中的传播速度基本相同 ;
短句来源
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  音速
     A Study of Two-phase Shock Waves with a Two-phase Flow Sonic Velocity being Taken into Account
     考虑两相流音速时气固两相流激波研究
短句来源
     When compared with the calculation results of a shock wave model based on a single-phase flow sonic velocity it has been found that in the case of a relatively large gasphase volume the sonic velocity difference as calculated by using the above two kinds of models is relatively small and the shock wave results for the two models are in good agreement.
     与基于单相流音速的激波模型的计算结果比较发现,当气相体积比较大时,两种模型所计算的音速差别较小,激波的结果是吻合的;
短句来源
     Discussion on the sonic velocity for high-speed aerated water flow
     高速掺气水流中音速问题的探讨
短句来源
     In view of the above,the shock wave analysis based on the two-phase flow sonic velocity model is more suited for general applications.
     因此本文基于两相流音速模型的激波分析更具通用性。
短句来源
     Then the corresponding sonic velocity of the two-phase flow is determined by the void ratio, pressure and density of the liquid phase.
     其对应的音速与汽液两相流体的空泡率、压力及液相密度等因素有关。
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  声波速度
     Meanwhile,it shows that the lithofacies transition body influences the sonic velocity of the propagation in the rock mass. Upon the body,the sonic velocity propagating in the rock mass is greater than that in the below.
     相变体的存在也使模型中声波速度产生新的分布,相变体上部声波速度较其下部速度大,相变体中声波速度一般较低,经过相变介质声波速度受相变体影响速度变小。
短句来源
     This paper analyses the influence to sturcture profile and sonic velosity by blasting in rock, and discusses the testing method of tesing sonic velocity with analysing structure profile, so we can get resonable influence depth by blasting.
     分析爆破对岩石结构面各种特性及声波速度的影响 ,对特定结构面的声波检测方法进行了探讨。
短句来源
     Utilization on guard electrode l ogging, density log (long and short spacing gamma-gamma log), litho-density log (scat tering gamma spectrum-photoelectric absor ption cross section index Pe), neutron poro sity, gamma-ray log, sonic velocity, calip er log, drift and so forth logging methods i n the prospecting hole of gypsum ore, may be divided exactly depth, thickness and textu re of gypsum bed, and can be distinguished g ypsum and anhydrite, and judged content of gypsum.
     在石膏矿勘探孔中使用聚焦电阻率、密度(长、短源距伽玛伽玛)、岩性密度(散射伽玛能谱———光电吸收截面指数Pe)、中子孔隙度、自然伽玛、声波速度、井径和井斜等测井方法,可以精确划分出石膏矿层的深度、厚度、结构,并能区分出石膏和硬石膏,判定石膏含量。
短句来源
     On the basis of a lot of studies, the author has gotten the following point of views:1. The igneous rocks in Tazhong area are widely and unevenly distributed, and their thickness are charged very much. The Permian igneous rocks in this area are mainly neutral to basic. 2. In Tazhong and its vicinity area, the Fast experience formula (V = KH1/6Rt1/6) can be used with resistivity to get sonic velocity.
     2.在塔中地区及其邻近地区,可以借助于法斯特经验公式V=KH~(1/6)R_t~(1/6)利用电阻率近似求取声波速度,塔中地区的法斯特经验常数K=756.645。
短句来源
     The main appearances of gas hydrates in the seismic reflection profiles are the bottom simulating reflections(BSR),reduction of amplitude (amplitude blanking),velocity inversion and Velocity and Amplitude Structures(VAMPS). Large amount of gas hydrate accumulation can be detected from high resistivity(usually>100 Ω·m),sonic velocity,low volumetric density and so forth.
     甲烷水合物在地震剖面上主要表现为BSR(似海底反射 )、振幅变形 (空白反射 )、速度倒置、速度—振幅结构 ( VAMPS)等 ,大规模的甲烷水合物聚集可以通过高电阻率 ( >1 0 0欧姆·米 )声波速度、低体积密度等号数进行直接判读。
短句来源
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  “sonic velocity”译为未确定词的双语例句
     Method of Sonic Velocity Testing in Rock with Structure Frofile Analysing
     岩石声波检测的结构面分析方法
短句来源
     This method uses sonic velocity and effective stress principle to calculate pore pressure. The vertical effective stress is obtained with the model.
     利用泥岩地层的声波传播速度与垂直有效应力间良好的相关关系 ,建立速度模型 ,由速度模型求取垂直有效应力 ,进而利用有效应力定量求取地层孔隙压力。
短句来源
     The influential regularity of drawing process on the structure and morphology of polyacrylonitrile(PAN)fiber was studied under different coagulation conditions with X-ray diffractometer,sonic velocity meter,density gradient tube and scanning electron microscope.
     应用X射线衍射仪、声速仪、密度梯度管及扫描电子显微镜研究了在不同凝固条件下拉伸对聚丙烯腈(PAN)纤维结构及表面形态的影响规律。
短句来源
     Different microstructure has different mechanical properties, which will result in the variation of sonic velocity and modulus decay, the information parameter relative with microstructure in echo signal will also have a change.
     组织状态的不同,使基体力学性能的连续性产生变化,这将导致超声波在材料中传播速度、衰减系数等参量的改变,鉴于超声回波信号中含有大量与材料组织状态相关的信息,这些改变必将带来信号中与组织状态相关的信息参量发生变化。
短句来源
     On the basis of a two-phase flow sonic velocity a gas-solid two-phase flow shock-wave model was set up,and calculations and analyses were performed.
     建立了基于两相流音速的气固两相流激波模型,并进行了计算分析。
短句来源
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  sonic velocity
Precipitation in an Al-3 pct Cu age-hardening alloy has been monitored at 130°C by ultrasonic pulse-echo measurements of attenuation and sonic velocity at 15 to 75 mHz and resonance bar damping and dynamic modulus measurements at 80 kHz.
      
Elastic deformation is shown to be fundamentally discontinuous, with very steep strain and stress gradients localized at the elastic wave front, which moves at sonic velocity.
      
The method makes use of an impact pulse traveling in a thin rod at sonic velocity.
      
It was established that the sonic velocity at low temperatures varies linearly with the temperature, and in the case of longitudinal waves changes from cl-3360 m/sec at 4.2 K to 2820 m/sec at 293 K.
      
A quantitative criterion is proposed for estimation of the dispersion of sonic velocity from the results of measurements at any two frequencies.
      
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In this paper, the accelerating feature of solar wind flow from subsonic and sub-Alfven velocity into supersonic and super-Alfven velocity is discussed in the axis-symmetric magnetic flux tube. In addition to the critical sonic line M2=1, there are critical Alfven line M2A= 1 and line M2+M2A = 1 if the two-dimensional effects of the flow and magnetic field are included. In this case, there is thrice transitions for the solar wind flow in the magnetic flux tube, and the type of the magnetohydrodynamic equations...

In this paper, the accelerating feature of solar wind flow from subsonic and sub-Alfven velocity into supersonic and super-Alfven velocity is discussed in the axis-symmetric magnetic flux tube. In addition to the critical sonic line M2=1, there are critical Alfven line M2A= 1 and line M2+M2A = 1 if the two-dimensional effects of the flow and magnetic field are included. In this case, there is thrice transitions for the solar wind flow in the magnetic flux tube, and the type of the magnetohydrodynamic equations will change from elliptic ones into hyperbolic ones, then the elliptic, and at last, into the hyperbolic ones. The consistent solutions of the magnetohydrodynamic equations for the solar wind flow need to study, because the typical sonic velocity has the magnitude of order just the same as the typical Alfven velocity and the rapid expansion of the magnetic flux tube is interested. There may exist several transitions for solar wind flow in the local flow tube.

本文讨论了轴对称磁力线管中太阳风从亚声速和亚阿尔文速度加速到超声速和超阿尔文速度的过程。考虑到流动和场的二维效应以后,除去临界声速线 M~2=1 以外,还有临界阿尔文速线 M_A~2=1 和M~2+M_A~2=1。这时,磁力线管中存在三次过渡,使磁流体力学方程组的类型从椭圆型变为双曲型,再变为椭圆型,最后变为双曲型。由于日冕中的典型声速和阿尔文速度具有相同的量级,而且人们对磁力线管的急剧膨胀很有兴趣,这就需要讨论二维磁流体力学方程组的自(冫合)解。太阳风的局部流管中有可能出现多次过渡的流动特征。

By studying of fuel injection system in high speed Diesel englines, it has been proved that, the propagation velocity of pressure wave (sonic velocity) in fuel pipe is evidently lower than the normal value. In author's opinion, this phenomenon can be explained by the sonic theory in two phase mixtures. Therefore, based on summarizing some studies by the overseas about this subject, this paper puts forward a formula fbr the caculation of the sonic velocity in gas-liquid two phase mixtures under...

By studying of fuel injection system in high speed Diesel englines, it has been proved that, the propagation velocity of pressure wave (sonic velocity) in fuel pipe is evidently lower than the normal value. In author's opinion, this phenomenon can be explained by the sonic theory in two phase mixtures. Therefore, based on summarizing some studies by the overseas about this subject, this paper puts forward a formula fbr the caculation of the sonic velocity in gas-liquid two phase mixtures under different pressures and temperatures. Moreover, the nomograms for calculating the sonic velocity of the air-diesel fuel mixture are first time desribed.

通过对高速柴油机喷油系统的研究,证实了柴油机高压油管内压力波传播速度在有空穴的情况下比正常值有明显的降低,作者认为,这种现象可以用两相介质的音速理论来加以说明.为此,本文在综述国外研究情况的基础上,导出了计算气、液两相介质在各种压力与温度下音速的公式,并首次给出了计算空气-柴油两相介质音速的诺模图。

Experimental result of the temperature of mtrnumiodide crystal under shock loading, as well as the shock- multing region are obtained with the optical method in the pressure region from 34GP a to 74GPa. some elastic-plastic release behavior of the specimens in its solid phase, solid-liquid mixed region and liquid phase is esumated and discusscd.It is found that the shock-melting region obtained from the elastic-plastie sonic velocity calculations is well in accordance with the one from shock-temperature...

Experimental result of the temperature of mtrnumiodide crystal under shock loading, as well as the shock- multing region are obtained with the optical method in the pressure region from 34GP a to 74GPa. some elastic-plastic release behavior of the specimens in its solid phase, solid-liquid mixed region and liquid phase is esumated and discusscd.It is found that the shock-melting region obtained from the elastic-plastie sonic velocity calculations is well in accordance with the one from shock-temperature measurement.

本文给出了用光学方法测量碘化钠晶体在34万巴至74万巴下的冲击温度,给出了它的冲击熔化区,对样品在固相区,固液两相区及液相区的弹-塑性卸载特性进行了估算和分析。发现用弹-塑性声速计算得出的冲击熔化区与温度实测结果完全一致。

 
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