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wave-impedance
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  波阻抗
     The logging-restrained seismic inversion technique is applied in the area,taking fine interpretation of layers and faults,building up wave-impedance model conformed with geologic rule of complex rift zone,the wave-impedance data volume with high-resolution is finally obtained by inversion.
     在该区应用测井约束地震反演技术 ,以精细的层位和断层解释为基础 ,建立符合复杂断裂带地质规律的波阻抗模型 ,通过反演得到了高分辨率的波阻抗数据体。
短句来源
     Using wave-impedance inversion data volume to implement reservoir prediction,distributed rule of sand body and sedimentary rule of reservoir in complex rift zone are revealed.
     利用波阻抗反演数据体进行储层预测 ,揭示复杂断裂带内砂体的分布规律和储层的沉积规律。
短句来源
     As a result,in the area where there are logging data,we can produce reflection coefficient and wave-impedance sections which nicely correlate to logging data and real stratigraphic structure.
     在有井资料的地区,能得到与测井资料有良好对应关系、与地层结构密切相关的反射系数剖面和绝对波阻抗剖面。
短句来源
     Seismic trace integral is a formation analysis technique using converted relative-velocity section. GLOG technique analyses formations by using wave-impedance section.
     地震道积分是一项利用转换的相对速度剖面进行地层分析的技术,而GLOG 技术则是利用波阻抗剖面分析地层的。
短句来源
     The converting relation between wave-impedance and porosity founded in this paper is effective for unconsolidated sandstone reservoir, while for different oil field and different lithofacies, it is changeable.
     文中所建立的波阻抗和孔隙度之间的转换关系对未固结砂岩储层是有效的 ,对于不同油田 ,不同岩相是有变化的。
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  “wave-impedance”译为未确定词的双语例句
     3rd, for stack seismic material, to obtain wave-impedance body by using the logging constrained inversion;
     第三步 ,对迭加地震资料 ,利用测井约束反演得到波阻抗体 ;
短句来源
  相似匹配句对
     r and the wave potential (?) .
     _r和波动势(?)
短句来源
     Wave propagation
     波的传播
短句来源
     We evaluated R-wave
     R波幅变化受到运动终止时心率影响。
短句来源
     MICRO-WAVE COOKING
     微波炉料理
短句来源
     Seismic wave imPedance
     地震波阻抗反演本身属于多参数的非线性化问题。
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  wave-impedance
Simple analytic formulas are obtained that relate characteristic points of the wave-impedance spectrum to the distance to a vertical cloud-earth thunderstorm discharge.
      


From the angle of bionics of animal sonar system, this paper discusses the function of acoustie lens of the melon of Lipotes Vexillifer. Based upon the theory of the dome of underwater transducer we make the following suggestions: (1) the density (ρ) and the acoustic wave impedance of the melon can be changed so as to get the maximal transmission of energy for the emission of different kinds of signals. (2) the shape and the curvature of the. melon can be changed so as to get the necessary pattern of emitted...

From the angle of bionics of animal sonar system, this paper discusses the function of acoustie lens of the melon of Lipotes Vexillifer. Based upon the theory of the dome of underwater transducer we make the following suggestions: (1) the density (ρ) and the acoustic wave impedance of the melon can be changed so as to get the maximal transmission of energy for the emission of different kinds of signals. (2) the shape and the curvature of the. melon can be changed so as to get the necessary pattern of emitted beam in dolphins' locating, communicating and hunting activities. The sceond part of the paper describes the preliminary results of a measurement of the acoustic characteristics of a piece of the melon of Lipotes Vexillifer.

本文包括两部分。第一部分是从生物声纳仿生学角度,讨论了白暨豚声发射中,关于额隆的透声作用并从设计水声换能器导流罩全透射基本理论出发,提出两点设想: (1) 额隆的密度(ρ)可变,即波阻抗(Z=ρC)可变,以适应在发射不同类型信号时,都得到能量的最大传输。 (2) 额隆的形状可变,即曲率可变,以适应在定位、通讯,觅食中所需的发射方向特性。第二部分是对1980年2月1日至2月4日在我院消声水池(4×5×8M~3)中,对白暨豚额隆进行声学测量作出的初步服告。

On the basis of in situ experimental investigation,the relationship between cavity ratio and blast stress wave parameters is established.The attenuation of stress wave along the axis of the strip charge is indicated.The effect of geological conditions on the attenuating index and the interrelation between the wave impedance and the attenuating index are given.

根据现场实验研究结果,推出了空腔比和爆炸应力波参量之间的关系。给出了应力波沿药包轴方向的衰减情况以及地质条件对衰减指数的影响、波阻抗和衰减指数间的依赖关系。

Starting with the postulation of impedance discontinuity, a complex impedance theory for the interelectrode multireflection effects of surface acoustic wave is presented. In this theory an electrode under the multireflection may be equivalent to a transmission line with a complex wave impedance and a complex propagation phase constant. As a result, the interelectrode multireflection effects could be expressed by simple formula. Thus, not only the frequency response of the equidistance transducers and the reflection...

Starting with the postulation of impedance discontinuity, a complex impedance theory for the interelectrode multireflection effects of surface acoustic wave is presented. In this theory an electrode under the multireflection may be equivalent to a transmission line with a complex wave impedance and a complex propagation phase constant. As a result, the interelectrode multireflection effects could be expressed by simple formula. Thus, not only the frequency response of the equidistance transducers and the reflection coefficients of uniform gratings, but also the reflection coefficients of withdrawed gratings and the frequency responses of the dispersive transducers can be described by these analytical expressions inplace of the commonly used numerical computation of matrix series multiplication which can not tell the relations between the results and the parameters, and is time-consuming in computation.

对于声表面波的指间多次反射效应,从阻抗不连续的假设出发,提出了复阻抗理论,把指条等效为具有复数阻抗和复数传输相位的传输线,从而反映出指间多次反射效应。引入这样两个复变参量之后,指间多次反射效应就可以用很简明的解析式表达出来。这样,不仅对于等间距换能器的频响和均匀栅格的反射系数,而且对于抽指栅格的反射系数和色散换能器的频响,都可以用解析表达式来表述。与通常使用的矩阵连乘的数值计算方法相比,既可以讨论结果与参量之间的关系,又可以节省数值计算的时间。

 
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