不散射的

A tapered incident wave is used to reduce the truncated error. The angular correlation function is calculated by Monte-Carlo generated rough surface, the enhancement on nonmemory line of the ACF can be used to detection a target placed over or under the rough surface.

在散射目标存在时，目标与粗糙面的复合多次散射场的角相关函数，在不满足记忆线条件下也有普遍较高的角相关函数值，即在非记忆线上的增强可以用于检测粗糙面上方、下方的散射目标。

In this paper, firstly we researched the relationships of the communicating distanceand the channel characteristic, the effect of the multiple scattering to the laserpropagation, the requirement of the laser communication to the ATP system and theway to determine the angular dispersion and receive field of view. It is proved that inlight haze weather, letting the input and output laser\'s wavelength are diferrent witheach other, after passing by the filter, it can avoid backward scattering effectually andfor the communication within 15km, the influence of the multiple scattering inatmosphere can be ignored.

论文对通信距离与信道特性、多次散射对光传输的影响、无线激光通信对ATP带宽的需求以及光束发散角和接收视场角等重要系统性能参数和指标进行了分析和研究，证明了在轻霾天气状态下，使系统中两终端发送的激光束波长各不相同，经过光束滤波，可以有效地消除后向散射干扰；在15km的通信距离范围内，大气中的多次散射对无线激光通信光传输的影响可以忽略。

We also have done some work about it. In this dissertation, the first, the common fluorescence spectrophotometer is used to study the ion-associated systems of cadmium-phenanthorline-bromophenol blue system and zinc-thiocyanate- crystal violet system.

同时由于目前共振光散射技术在基础理论方面尚不很完善，还需做大量的实验研究和理论探索工作，本文也在共振光散射技术理论方面进行了初步探讨。

When the impact energy is high, the differential cross section for a geometry of the polarization parallel to the incident direction at large angles goes up, which seems different from the usual scattering.

在大角时，平行于入射方向极化的Ps微分截面随散射角增大而增大，这似乎不同于通常的散射。

If it avoids scattering over one mean free path, the odds favor scattering by the time it traverses another mean free path, and so on.

如果光子在一个平均自由路径中不被散射掉，它也会在第二个平均自由路径中或以后的平均自由路径中被散射掉。

For computer simulation of our new reconstruction algorithm, which is only valid for some special scatterers, the corresponding direct scattering data are indispensable and some are given for several scatterer models out of such consideration.

进行重建计算机模拟计算，需要正散射数据，又因本文给出的重建算法目前只对满足特定条件的散射体才有效，出于这样的考虑，这里给出了若干形状不太复杂的散射体对平面波的散射。

Based on the research on the scattering of the Gaussian beam from single sphere, the intensity distributions of LGB beam in different propagation distance is analyzed. Without considering the relationship of scattering and phase shift, the beam coefficients is gained by the solution of scattering cross section, and the LGB is expanded in terms of the vector spherical harmonics as fundamental Gaussian beam. The scattering of the beam with orbital angular momentum from single sphere located on the propagation axis is studied.

在单体球粒子对高斯光束散射研究的基础上，分析了在自由空间不同传输距离LGB光束的光强分布情况，在不考虑散射和波束相移关系的情况下，将LGB作为入射高斯光束，通过对波束入射时的散射衰减截面求解得到波束因子，利用矢量球谐函数对入射高斯波束进行展开，从而研究了单球粒子在在轴条件下对具轨道角动量高斯波束入射的散射问题。

The absorption of dye such as methyl orange,methylene blue,crystal violet,bromcresol green and bromothymol blue is one of very important factors to result to resonance scattering peak and valley.

研究了溴酚兰、甲基橙、澳甲酚绿、溴甲酚紫、结晶紫等染料对金纳米粒子溶胶共振散射光谱的影响，发现不参与纳米反应的游离分子吸收是产生共振散射峰和共振散射谷的一个重要原因。

Moreover, the SALS images were digitally analyzed by means of Debye-Bueche and Mie scattering theory to obtain corresponding structure parameters describing the morphology, e.g., correlation distance ac, integral constant Q and fractal dimension Dc as well as the relationship between these parameters with blend composition, blending time and content of the compatibilizer.

根据Debye-Bueche和Mie散射理论，利用光散射处理软件对光散射在线采集数据进行了分析并得出表征合金体系相结构的参数：相关距离ac、积分不变量Q、分形维数Dc等并分析了各结构参数与体系组成、共混时间及相容剂含量的关系。

Cavities are specific electromagnetic structures, and their scatterings are different from convex objects.

凹形腔体是一类特殊的电磁散射结构，其电磁散射特性不同于一般的凸面体。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。