The fundamental principle of the CT based on the theory of elastic wave ray is briefly introduced, and the key technique of the elastic wave CT is deeply analyzed.
本文首先对弹性波CT基本原理进行简要介绍，然后对弹性波CT关键技术进行较为详细的分析说明。
The Fresnel wave ray equation is deduced by use of the fundamental equations of crystal optics. The crystal optics question is solved by Fresnel wave ray equation cooperating with Maxwell equation.
利用晶体光学基本方程推导出菲涅耳波射线方程，通过波射线方程并结合麦克斯韦方程组求解晶体光学问题。
“We still teach students analog X-ray techniques, but the emphasis is on digital radiography,” clinic director Herbert said. “This is the wave of the future.”
“我们也会教学生使用模拟X光技术，但教学重点是数字放射显影术，”诊所主任赫伯特说。“未来化趋势不可阻挡。”
"We still teach students analog X-ray techniques, but the emphasis is on digital radiography," clinic director Herbert said. "This is the wave of the future."
“我们也会教学生使用模拟X光技术，但教学重点是数字放射显影术，”诊所主任赫伯特说。“未来化趋势不可阻挡。”
This paper presents an effective radio wave propagation prediction model by using radiation sources tree for microcellular environment. This model is based on ray-tracing and UTD.
提出了一种有效的微蜂窝电波传播预测模型，该模型基于射线跟踪法和UTD理论，并使用辐射源树的方法。
Ray traces of the injecting electron-cyclotron wave into an equilibrium mirror plasma from different locations and with various angles are given by using a parallel plane-stratified-model.
本文利用平行平板模型，给出了在不同位置、以不同角度入射到平衡的磁镜等离子体中电子回旋波的传播轨迹；
This algorithm USES ray tracing to calculate traveltime, and DE - rives reflection amplitude from wave field interface equation.
该算法使用射线追踪计算传播时间，应用波场界面方程计算反射振幅。
The method can be applied in the shortest ray path tracing and the processing courses such as refraction wave static correction and can reduce the operating quantity and time.
将该方法应用于最短射线路径追踪和折射波静校正等资料处理的过程中，可以减少运算量和运算时间。
Gaussian beam method is essentially a seismic forward modeling method that combines wave equation and ray theory.
高斯射线束方法是将波动方程和射线理论相结合的一种地震正演模型方法。
Gaussian beam is the asymptotic solution of wave equation concentred at the central ray.
高斯束是波动方程在特定射线附近的高频渐近解。
On this condition, the paper put forward a new electric wave transmition model in the microcell , which based on ray tracing method of Virtual Fountain Tree.
在总结前人工作的基础上，本文提出了一种新的基于“虚拟源树”射线跟踪技术的微蜂窝小区的电波传播模型。
Results of acoustic field prognosis on wave theory, normal model and ray model are compared, and the approximate degree of the later two models is given.
本文对比了波动理论、简正波声场和射线模型的声场预报结果，给出了后二种方法的近似程度。
A simple model is presented for calculating the lower hybrid wave (LIIW) power deposit along the ray tracing and for obtaining the RF current profiles.
本文利用较简单的计算模型计算低杂波沿射线轨迹的能量沉积和电流分布。
The forward modelling method of wave equation is of a high precision and a lower computing efficiency compared with the ray theory based method.
波动方程正演模拟法相对于射线法具有精度高、效率低的特点。
Also parabolic type equation commonly used now is derived from the hypothetic conditions of ray theory, so it does not include the wave natures completely.
目前通常采用的抛物型方程，也是在射线理论的假设条件推导的。所以，其波动性质也是不完全的。
Ray tracing method is used to calculate and superpose the power deposition of any wave packet, and the power deposition result is obtained.
用射线轨迹方法计算并叠加每一波束功率沉积，得到快波功率沉积的计算结果。
Then, with some approximation to the wave front section, the forward modeling can be achieved through the ray tracing method based on the minimum traveling time and the shortest traveling trace assum.
然后，对波阵面作一近似，在此基础上，用最小走时最短路径射线追踪法完成正演。
Electromagnetic theory, statistical plane wave theory and the ray tracing theory of reverberation Chambers are studied in Chapter III.
第三章论述了混响室的电磁场理论、混响室平面波统计理论和混响室射线理论。
The solving of wave equations and tortuous ray method are fundamental methods of analysing plane optical waveguiding.
曲折光线法和解波动方程是分析平面光波导的基本方法。
The space observation successes in solar long wave radio, X-ray, EUV. research results from those observations are investigated in this paper.
本文着重探讨了太阳空间长波射电观测、X射线观测、紫外线观测的成就与研究结果。
The ray optics and wave optics methods for slab waveguides are also explained while the Marcatili's method and the effective index method are introduced for channel waveguides.
研究了平面平板波导的射线理论分析法和电磁场分析法，条形波导的马卡梯里法和等效折射率法。
The refraction directions both the wave normal and the light ray can be calculated by the formulas above.
文章所得解析公式完全可以确定折射光的波法线和光线的方向。
Full wave model phase analysis technique may involve wide subjects, but this paper only deals with the analysis methods of ray, amplitude, wave spectrum and particle vibration pattern.
全波模型震相分析法研究的内容是非常广泛的，本文仅对其中的射线分析、振幅分析、波谱分析、质点振动方式分析等方法进行了探讨。
The expression of optic axial Angle and ray axial Angle on light wave plane can be obtained by using the curve equations of the wavefront of light wave and normal plane of light wave.
利用光波面和光波法线面的曲线方程，得出了光波面上光轴角和光线轴角的表达式。
The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium, the refraction error is produced.
由于空中大气介质的不均匀性使得电波传播速度减慢射线产生弯曲，从而产生折射误差。
Water window is a special wave band for microscopy in soft X-ray range, which makes the research in water window polarization great significance.
水窗波段是软x射线进行生物活细胞显微成像的最佳波段，因此对于水窗波段偏振光学元件的研究有着非常重要的意义。
A comparison between the wave and ray models shows that the ray model gives an approximation of the transmission loss in an acoustic vector field.
经过与波动理论的比较，说明该模型仅是矢量声场传播损失的简单近似。
The plane wave with different incident angles has different contribution to the final imaging result, and based on it, the ray parameters can be correctly selected for plane wave imaging.
不同角度入射的平面波对最终成像结果的贡献是不同的，据此可以有针对性地选择射线参数进行平面波成像。
The problem of the seismic wave travel path in the nonhomogeneous medium is often mentioned in seismic sequence analysis by means of rapid ray tracing.
在地震层析研究中，常常涉及地震波在非均匀介质中的传播路径问题，故快速射线追踪是不可缺少的工具。
This paper introduced the application of infrared ray, supersonic wave, high frequency, laser, radioisotope, microwave and acoustic emission technology to wood industry.
介绍了红外、超声、高频、激光、同位素、微波、声发射、计算机等近代技术在木材工业上的应用概况。
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