入射点

Optical fiber will be in a total reflection in a horizontal displacement, the incident points and reflection point is not coincidence, will lead to optical signal pulse broadening influence of signal transmission.

光在光纤中发生全反射时会产生一个横向位移，入射点和反射点并不重合，将导致光信号脉冲展宽，影响信号传输。

To research into the distribution of laser spot on the sea surface of airborne laser bathymetric system, to obtain the relationship between its spacing and scan mode, scan driver rate, laser frequency and plane speed, and to optimize its distribution are important.

通过对激光测深仪的激光海面入射点分布的研究，得到了其疏密程度与扫描方式、扫描电机转速、激光器重复频率和飞机飞行速度等参量之间的关系，并对激光海面入射点分布进行了优化设计。

For obtaining a formula for the local traveltime computation, we invoke the Fermat principle and a condition for limiting the position of the incident point.

为了得到局部走时计算公式，利用费马原理和关于入射点位置的限定条件。

A spatial distribution of diffuse reflectance produced by obliquely incident light is not centered about the point of light entry.

倾斜入射的光所产生的漫反射的空间分布，其中心与光的入射点存在一个偏差，这个偏差与组织的吸收系数和有效消光系数有直接的关系。

Methods To take an axial view radiograph of patella with patient in sedentary position, the patients' hip joints were kept flexural with 90 degrees naturally and knees flexural between 30 to 80 degrees, then photos were taken by adjusting the angle and point of incidence of the central line.

取坐位投照髌骨，患者髋关节保持自然屈曲90°，屈膝角度范围30°～80°，然后调整中心线的入射角及入射点进行投照。

Studies discover that the minimal deposition threshold is 20eV and the maximum is 60eV with the different incidence point locations and incidence postures of C36 clusters. When the incidence angle is not over 60, C36 may roll or slip to the region of smaller bonding energy and then bond. So the bonding probability is raised.

研究发现：由于C36入射点位置及入射姿势的不同，其在金刚石（100）晶面沉积时的沉积阈值最小值为20eV，最大为值60eV；在入射角不超过60°斜射时，由于水平运动分量的存在，C36可能翻滚及平滑至成键能量较小的区域后再成键，因而提高了成键几率。

The angle between a ''.'reflected'.'' ray and a line perpendicular to the ''.

在一个入射点一条反射线与垂直于''。

Some basic equations of dual beam scan are derived,such as,the position vector for the incident point,the scalar expression for reflected ray,scan pattern on observation plane ect.

文摘：应用几何光学理论研究了多光束转镜扫描场的非对称性，导出多光束扫描入射点位置矢量、反射线标量表达式、观察面上的扫描轨迹方程，并研究了扫描远场的非对称性。

The angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction.

在一个入射点一条折射线与垂直于表面的线之间的夹角。

When the viewpoint is changing quickly, the rendering algorithm ignores some details of the diffuse component, otherwise the scene is rendered more precisely. The Specula highlight is dependent of the viewpoint, it must be processed in real time. We present an algorithm to get rid of the area that does not contain specula highlight quickly and calculate only the area that contains the specula highlight. In order to calculate the specula reflection and refraction component, we presented a new raytracing algorithm based on the environment map transformation. The environment maps are constructed at the sample points of the scene in the preprocessing phase. We add depth information in the environment maps and generate the exact reflection and refraction intensity with the transformation of a few pixels.

对于表面光亮度漫射分量，由于它与视点无关，可以把面片按照光照细节的分布预剖分成层次结构，然后在实时漫游时根据场景变化的快慢决定绘制的细致程度；对于镜面高光分量，由于它与视点有关，必须实时处理，我们提出了一种快速高光裁剪算法，通过简单测试，去除那些不包含高光的区域，只处理包含高光的区域；对于镜面反射分量和折射分量，我们提出了一种基于环境映照变换的快速光线跟踪算法，预先在场景的离散采样点处建立环境映照，然后根据入射点的位置，把邻近采样点处的环境映照上相关象素处的可见点变换过来，求取反射分量和折射分量。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了