Diffraction direction of a ray passing a crystal for symmetrical or asymmetrical reflection is calculated from the vector form of Laue diffraction equation.
根据劳厄衍射方程的矢量形式计算光线经对称或非对称晶体衍射后的方向。
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。
Complete reflection of a ray of light in a medium such as water or glass, from the surrounding surfaces Back into the medium.
在一种媒质（如水或玻璃）中的光线从媒质的边界完全反射回媒质内部的现象。
Error effect in depth of diffraction pattern of X ray reflection zone plate has been studied.
研究x射线反射式波带片衍射图形制造过程中的深度误差效应。
Layered and blocked homogeneous models are usually used to calculated travel times and ray paths of wide-angle reflection waves in interpreting wide-angle reflection data of deep seismic sounding.
在研究地壳结构的人工源宽角反射地震资料解释中，常规宽角反射波走时和射线路径计算大都假定地壳模型为层状块状均匀介质。
Total reflection X ray fluorescence (TXRF) method was used to the multielement analysis of Jiangxi Wuyuan green tea and Ninghong black tea.
用全反射X -射线荧光法（TXRF）分析了江西婺绿和宁红茶的矿质元素含量。
So to the important reflection and refraction results, we must choose a right chain of ray paths.
于是乎，对于拥有折射反射的物体，我们必须要考虑正确的光路。
Methods Ray tracing of geometric optics based on the reflection and refraction laws.
方法采用以几何光学反射定律和折射定律为基础的光路追迹计算方法。
The sensitivity of total reflection X ray fluorescence analysis (TXRF) is higher than normal X ray fluorescence analysis (XRF).
全反射荧光分析(TXRF)比常规荧光分析(XRF)具有更高的灵敏度。
It is based on the least square of the difference between the real reflection first break time and corresponding modeled ray-tracing travel time.
此法以反射地震资料中的观测初至旅行时与模型射线追踪旅行时之差的最小平方法为基础。
The advances, principles, Instruments and applications of total reflection X-ray fluorescence spectrometry are reviewed with 67 references.
本文综述全反射x -射线荧光光谱分析的进展、原理、仪器和应用。参考文献67篇。
X-ray diffraction pattern features strong reflection on the odd basement layers and weak one on the even basement layers.
射线衍射谱的特征是基底奇数层反射强，而偶数层反射不明显。
The method comprises the following steps: after parallel rays project to a target surface area element, acquiring a path parameter of each ray from incidence to reflection;
所述方法包括：当平行射线投向目标面元后，获取每条射线从入 射到反射的路径参数；
The experimental instrument, sample preparation and determination method of the trace element Se in solution by total reflection X-ray fluorescence analysis are described in this paper.
本文叙述了用全反射X荧光分析方法测定溶液中微量硒的实验装置、制样技术和测定方法。
The integral representation for acoustic ray is constructed by the product of the generalized reflection-transmission coefficients corresponding to the specification of the generalized ray paths.
任意一条广义声线的积分表达式，则可根据每一条声线段的性质，由各反射界面上的广义反射、透射系数直接给出。
Also, we discuss a ray treatment method which is used for the model given surface and bottom power reflection coefficients and volume absorption.
文中同时讨论了一种射线的方法，用于解决给定了海面、海底反射系数、介质声吸收系数的海洋环境下的问题。
The external surface at the upper section of the body is equipped with the light reflection strip which can produce the strong reflected light ray to perform the warning function.
所述的靴筒体的上部外表面还设有反光条，可以产生较强的反光而起到警示作用。
The external surface at the upper section of the body is equipped with the light reflection strip which can produce the strong reflected light ray to perform the warning function.
所述的靴筒体的上部外表面还设有反光条，可以产生较强的反光而起到警示作用。
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