The gamma ray index is usually computed from a well log such as a gamma ray log.
自然伽马指数通常由自然伽马或其它测井曲线计算得到。
The paper provides easy-to-understand daily life indexes such as the ultraviolet ray index, morning exercise index, sun protection factor index, carwash and heat stroke indexes.
该报纸提供了一些诸如紫外线指数、晨练指数、防晒指数、洗车指数以及中暑指数等简单易懂的每日生活指数提示。
Dr Hess envisages a ray of light travelling down an optical fibre made from two materials: a core with a negative refractive index and an outer sheath with a positive one.
赫斯博士构想出一个画面，即一道光正穿越于一个由两种材料制作的光导纤维，一种是具有正折射指数的纤维核，另一种则是具有正折射指数的外围。
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
本文根据光线轨迹方程，讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
On the histograms of their redshift, optical luminosity and average optical X-ray spectral index, it is found that X-ray selected quasars are distributed at the low ends of plots of these parameters.
发现在它们的红移、光学光度以及平均光学-X射线谱指数的直方分布图上，X射线选择类星体统计上都分布在这些参数图的低端。
Conclusions X-ray change of pelvis and bony trabecula are selected as reliable index for diagnosis of sclerotic fluorosis.
结论X线骨盆及其骨小梁改变分别是氟骨症检查的首选部位和可靠指标。
The results show that the factors are the refractive index thick ness layer number of one-dimensional dual photonic crystal polarization and incident Angle of incident ray.
结果表明：组成一维二元光子晶体的折射率、厚度、层数、入射角、光源的偏振态等都对透射特性有影响。
IOR - also known as Index of Refraction, a physical parameter of transparent matter that defines how strong a ray gets bent when entering media of different density.
折射度-物理参数，表现折射物体的光折射特性，光线穿过某不同密度物质所应改变方向的角度。
Objective To explore the correlation of chromosome aberration and the hemogram variation in X-ray workers and provide the mechanism index for radiation damage.
目的探讨X射线工作人员染色体畸变与血象变化的关系，为辐射损伤机制提供线索。
The reasons of high disintegration index of Meishan iron ore sinters are studied by storage and shatter test, as well as microprobe, X-ray and differential thermal analysis.
对梅山烧结矿粉碎率高的原因进行了剖析，研究中采用了贮存和落下试验、显微分析、X -射线分析、差热分析等。
The distribution of microfibril spiral angle and relative orientational index of cellulose crystallites in cotton fibre cell walls had been studied by X-ray diffraction analysis.
用x射线衍射法对棉纤维细胞壁的微原纤螺旋角和纤维素微晶相对取向指数在植株中的分布规律进行了研究。
Starting with waveguide ray theory, the condition for single-mode waveguide is derived, and design of single-mode strip waveguide is accomplished with effective index method.
从导波的射线理论出发，导出了波导单模条件，运用有效折射率法完成了单模波导的优化设计。
At last, the author obtained the equation of ray trace in the GRIN ball lens with the index profile which is quadratic and drew some important conclusions.
研究了二次抛物线型的GRIN球透镜的光线轨迹方程序；得出其轨迹为椭圆曲线及一些重要结论。
The index of refraction for the extraordinary ray is therefore a function of direction.
折射光线的折射率因此在各个方向不同。
In general, the half width of X-ray diffraction is used as a strength index of material surface.
通常用X射线衍射线的半高宽作为材料表面的强度指标。
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。
If they have the X-ray powder diffraction patternsof materials, even if being non-expert on X-ray crystal structure, they can conveniently get the index of diffraction lines and cell parameters.
对于非专业X 射线晶体结构人员，只要得到材料衍射图谱后，能很方便计算点阵常数和衍射线指标化。
X-ray change of pelvis and bony trabecula are selected as reliable index for diagnosis of sclerotic fluorosis.
结论X线骨盆及其骨小梁改变分别是氟骨症检查的首选部位和可靠指标。
Methods Retrospective analytical method was used to investigate pattern distribution, age, course, main laboratory index and X-ray stage of 475 ra patients.
方法对475例ra患者的中医证候分布情况与年龄、病程、主要实验室指标、X线分期进行回顾性分析。
The ray propagating and paraxial imaging characteristics of a GRIN fiber lens with constant refractive-index surfaces of revolution paraboloids are studied.
本文研究一种等折射率面为旋转抛物面的梯度折射率纤维的光线传播和近轴成像特性。
By the theory of ray optics, the bend losses of fiber as function of fiber parameters such as core index, cladding index, core radius and bend radius are set up.
利用光线理论研究光纤弯曲损耗与弯曲半径、纤芯折射中以及包层折射率的关系。
The results show that the factors are the refractive index, thick ness, layer number of one-dimensional dual photonic crystal, polarization and incident Angle of incident ray.
结果表明：组成一维二元光子晶体的折射率、厚度、层数、入射角、光源的偏振态等都对透射特性有影响。
The refraction index of transparent glass-plate was measured with ray-displacement method, formulas of the refraction index and experimental error were obtained by theoretical analysis.
采用光束位移法测量了透明玻璃板的折射率，分析了折射率的公式和实验误差处理公式。
The firstly designed X-ray phase identification index method by computer automatic search match is presented in this paper.
本文介绍了作者首次设计的X射线物相鉴定指数化定相的电子计算机检索方法。
Methods: Using X-ray; bone mineral density index and bone biochemistry measure 369 cases of old fracture who have been fracture in three years through means of Evidence-based medicine.
方法：在循证医学指导下对福利院369名老年人中3年间发生骨折的病人进行X线摄片和骨密度、骨生化代谢指标测定。
In Chapter 2, the refractive index distribution and ray trajectory of GRIN ball lens are studied in theory.
第二章主要从理论方面研究梯度折射率球透镜的折射率和光线轨迹。
Therefore, to reach an accurate decision on ray trace in atmosphere, the variation characteristic of refractive index in atmosphere must be found out.
所以，只有了解大气折射率场的变化特性，才能对大气中的光线追击做出精确的判断。
Therefore, to reach an accurate decision on ray trace in atmosphere, the variation characteristic of refractive index in atmosphere must be found out.
所以，只有了解大气折射率场的变化特性，才能对大气中的光线追击做出精确的判断。
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