查询词典 cathode ray

Taking stray light in "Shenguang III" as the study subject and basing on the basic principle of geometrical optics,Applying the technological path of paraxial ray and real ray tracing,a new analytic way and data structure,which suits for the specific requirement in analysis and process of ghost images,is presented.

本课题就是以"神光-Ⅲ"激光装置中的杂散光为研究对象，针对高功率多程放大系统在鬼像分析与处理方面特殊要求，从光线光学的基本原理出发，应用近轴光线与空间光线追迹技术路线，提出一种新型的分析方法和数据结构。

All backscattering field s intensity from conducting plate can be calculated by complex ray method ,especially complex ray paraxial approximation in angle domain through modeling the conducting plate.

本文通过建立导电平板反射场分析模型，利用复射线方法特别是角域中的复射线近轴近似方法，有效地实现了导电平板在整个后向范围内散射场的计算，同时计算精度可以由复射线展开参数ξ来加以控制。

According to the characteristic that the definition point of the Q matrix of wave front is always located on the extremum point on the axis of the beam, a three-dimensional formula for the rectificative factor of phase in complex ray paraxial approximation is proposed, which calculates the rectificative factor of phase directly without considering the calculation of the main directions and curvatures and the rotation of the coordinates, thus simplifying the paraxial approximation calculation by the complex ray expansion method.

根据波前Q矩阵的定义点总位于波束轴上极值点的特点，提出了三维复射线近轴近似相位校正因子计算公式。该公式不用考虑主方向和主曲率的计算和坐标旋转，直接计算相位校正因子，从而简化了复射线展开法的近轴近似计算。

When using γ-ray penetrance method to measure soil water content in the big model test, several influencing factors on measurement accuracy of the γ-ray penetrance method are analyzed comprehensively.

在运用γ射线透射法测量大型滑坡模型土体含水量的过程中，为了提高试验的精度，综合分析了影响γ射线透射法测量精度的多种因素。

Methods Retrospective analysis of five cases of the X-ray diagnosis and clinical validation of periosteum hyperplasia of baby of the X-ray and clinical features, made the diagnosis, differential diagnosis.

回顾性分析5例经X线诊断及临床验证的婴儿骨皮质增生症的X线及临床特点，提出诊断、鉴别诊断要点。

Compared to commonγ-ray (x-ray mainly) flash perspectivity techniques, the technique of direct particle detection by CCD has not been widely used by researchers in other fields except several advanced research institutions abroad who use CCD arrays to constitute vertex detectors to record traces of space flight behavior of energetic particles.

相对于目前常用的γ射线透视成像技术而言，除了国外少数先进研究机构采用阵列CCD组建顶点探测器来记录高能粒子的空间飞行径迹以外，利用CCD直接进行粒子探测的技术尚未被其它领域的研究人员所广泛采用。

At present, this kind of GaAs photoconductor detector has had practical value. It can detect X-ray, gamma-ray, laser pulse successfully at the room temperature.

目前，我们研制的砷化镓光电导探测器可以在室温下对X射线、γ射线及激光脉冲进行测量，有一定的实用价值。

The surfaces of the grids were analyzed by x-ray diffraction and x-ray photoelectron spectroscopy.

然后，对样品表面进行了X—射线衍射测量和X—射线光电子能谱的测量。

Methods:[WT5BZ]Thirty-seven cases with primary tumour in department of X-ray ,Haining second hospital January 1998 to June 2000,all patients with pathology (18 cases),cytology(3 cases)and computed tomography,magnetic resonance imaging,specific photology etc.(16 cases)proved lung metastatic tumor and to studied the X-ray basic change,primary tumuorign and patholog types etc.

收集海宁市第二人民医院放射科 98年 1月至 2 0 0 0年 6月拍摄胸片的 37例其原发癌瘤，经病理( 18)、细胞学( 3)或 CT、MRI、特殊造影检查( 16)等确诊的肺转移瘤资料，对其肺部转移性病灶的基本 X线表现、原发癌肿来源、病理类型等进行分析研究。

With passive methods of CR-39 and TE/C ion chamber, the photoneutron dose at the isocenter was 0.19mSv/Gy X-ray and 0.06mSv/Gy X-ray.

在 一般的工业用或医用电子加速器中，韧致辐射靶、用于屏蔽和准直光子的材料多是高原子序数的材料。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。