查询词典 wave propagation

According to acoustic wave equation, the property and propagation of SAW is expounded.

从声波方程出发，阐述了声表面波的基本性质和传播特性。

The attenuation law of the air shock wave during its propagation along drifts has also been discussed.

本文论述了井下发生沼气爆炸时空气冲击波的发生发展过程，以及空气冲击波沿井巷传播的衰减规律。

For strong disturbance case in which Δp is set to be 5, by examining the distributions of relevant physical quantities along radial direction and the normal of wave front, we can infer that the slow wave introduced by the strong pressure pulse steepens into slow shock during the propagation process.

与二维情形类似，沿由源区出发的径向，可以分辨出压力脉冲增长相所引起的前导快波与后随慢波的传播，同时还可观察到压力脉冲恢复相所导致的快模磁声波的传播，由于传播速度的差异，该波动在向外传播的过程中逐渐超过后随慢波。

First, systematic study on propagation, reflection and interaction of axial stress wave is made to deduce the calculation equation for axial elastic and plastic stress wave, which fit for analysis of impact buckling of axial compression member.

本文首先对轴向应力波在构件中的传播、反射及相互作用进行系统分析，推导出适合轴心受压构件冲击屈曲分析的轴向弹、塑性应力波计算公式。

Two dominate variation trends are distinguished in the data plots of compressional-wave velocity versus Possion ratio, indicating the effects of mud content and calcite cement on the elastic properties of sandstone samples. In each change trend, with the rock texture transfering gradually from grain-supporting to matrix-supporting with increasing mud and calcite cement content, the propagation of elastic wave also changed from grain-to-grain contacts to rock matrix, which resulted in the measured data illustrating extremely different tendency. It helps utilize the physics properties of reservoir sandstone to extract rock texture and diagenesis properties in the research area.

样品在纵波速度－泊松比交汇图中表现出两种主要变化趋势，分别对应泥质与钙质胶结物的影响；在每个变化趋势中随泥质含量与钙质胶结物含量的增加，岩石结构从颗粒所构成的骨架支撑逐渐表现为基质支撑，弹性波能量的传播也从通过颗粒接触边界转变为通过岩石基质传播，这是使砂岩样品测试结果表现出两种截然不同变化趋势的主要原因，为利用岩石物理特性从地震资料中提取岩石结构、沉积与成岩特征的信息提供了依据。

The modified Rytov's method is applied to the study of the light wave oblique propagation, and the fluctuation index of plane wave is obtained.

将修正的Rytov方法推广应用于研究斜程传输问题，推导了平面波斜程传输时的闪烁指数。

Based on the Elliott wave principle, we propose an N-shaped wave technical index, and use the physical strength of slope, potential energy, angle, length, and time to construct back-propagation neural networks, and forecast Taiwan stock market trend.

以艾略特波浪理论为基础，提出一个N型波浪形状的技术指标，利用N型波浪的斜率、位能、夹角、长度、时间的物理力量建构符合泰勒级数精神的倒传递类神经网路对台湾股票市场中期趋势加以探讨。

Based on the wave equation, this paper describes the underwater acoustic propagation by a wave guide model,and computes the model.

文摘：通过求解波动方程建立了水声在波导中传播的模型并进行了仿真计算。

Based on the wave equation, this paper describes the underwater acoustic propagation by a wave guide model, and computes the model.

通过求解波动方程建立了水声在波导中传播的模型并进行了仿真计算。

In an oil well, the casing is a steel circular pipe, and it would confine and guide the electromagnetic wave propagating; and the electric properties of the fluid media would determine the propagation factor of the guided wave and affect the distribution state of the electromagnetic field.

油井内的套管是钢铁质圆管，对电磁波的传播将产生限制和引导作用；油井内流体介质的电性质将决定导波的传播常数，影响电磁场在井的轴向上和横向上的分布状态和波的传播特性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。