本文针对声波方程，给出了完全匹配层吸收边界方法。
Aimed at acoustic wave equation, the paper gave absorbing boundary condition by using perfectly matched layer.
通常国内隔声罩设计均是以一维声波方程为理论基础。
Most of the previous designs of machine enclosure were calculated according to the experical formula.
从声波方程出发，阐述了声表面波的基本性质和传播特性。
According to acoustic wave equation, the property and propagation of SAW is expounded.
根据胜利油田典型地质模型的构造特点，本文提出了变密度声波方程交错网格高阶差分正演方法。
According to structural feature of typical geologic models in Shengli oilfield, the paper presented staggering mesh high-order difference forward simulation of density-variated acoustic equation.
本文利用声波方程，对阶梯状地表数据进行样条插值处理，得到了与起伏地表比较吻合的四边形网格剖分。
Using acoustic equation, the paper conducts spline interpolation for step surface data and results in quadrilateral grid partition coincident with relief surface.
利用全声波方程进行地震波场的数值模拟，虽然可以计算全声波波场值，但是也常常会出现层间多次波，给资料解释造成一定的困难。
Although one can get full acoustic wave data using acoustic wave equation for seismic modeling, the data are difficult to interpret for the multiples.
时域有限差分法将声波基本方程表示为一个时间和空间的迭代方程组，实现对室内声场中低频段的模拟计算。
The acoustical wave equation is presented a serial spatial and time iterative equations and room acoustics field is simulated using finite difference time domain method.
在声波波动方程有限差分波场数值模拟中，由于计算模型的限制，导致很强的人为边界反射的产生。
In numerical wave simulation of finite difference for acoustic wave equation, due to the limitation of computer model, there inevitably exists strong artificial boundary reflection.
基于声波或弹性波方程的有限差分方法是数值模拟地震波场或合成VSP地震记录的有力工具。
The finite difference methods based on acoustic or elastic wave equation are very useful tools for wave-field numerical modeling or VSP data synthesizing.
文章给出声波在气液混合物中的传播方程。
The propagation equation of sound wave in gas liquid mixtures is given.
论文第二章研究了等离子体中横向扰动下的(3 +1)维弱非线性离子声波，得到了描述离子声孤波的(3 + 1)维kp方程。
In chapter two, the (3 + 1) dimensional weakly nonlinear ion acoustic wave at higher order transverse perturbations in plasma was discussed and described by the Kadomtsev-Petviashvili (KP) equation.
本文提出的反演理论，主要是基于声波波动方程展开讨论和研究的，其研究方法对于弹性波方程和粘弹性波方程同样适应。
The study in the paper is based on acoustic wave equation, but its research methods are also suitable to elastic and viscoelastic wave equation.
通过回归分析，获得坝区试验点岩体的声波波速与变形模量的回归经验方程和高度显著的回归拟合曲线。
The empirical regression equations and high significance fitting curves of sound wave velocity and deformation modulus for test rock mass are got by regression analysis method.
本文对球面型超声波电动机的工作原理、基本结构、基本方程式进行了讨论。
The working principle, basic structure and basic equation to the spherical ultrasonic motor are discussed in the paper.
本文从热弹性基本方程出发，理论上研究了非金属固体材料受激光热弹激励超声时，光穿透效应对所产生声波的影响。
The effect of optical penetration on laser thermoelastically- generated ultrasound in nonmetallic solids is studied theoretically on the basis of thermoelastic equations.
本文建立了沿不同方向的多个超声波信号作用下的多维声光衍射的耦合波方程，并求出相应的解。
A set of coupled wave equations for multiple dimensional acoustooptic diffraction with multiple acoustic waves along different directions is put forward and its solutions are derived.
本文推导了计及重力效应运动媒质中的次声波动方程和用速度的散度表示的分层大气模型下的频散方程；
The equation of infrasonic wave taking into account the gravitational effect in moving media is derived, with multi-layer atmospheric model.
本文推导了计及重力效应运动媒质中的次声波动方程和用速度的散度表示的分层大气模型下的频散方程；
The equation of infrasonic wave taking into account the gravitational effect in moving media is derived, with multi-layer atmospheric model.
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