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You will like the change, and you'll find your new educational experience amazingly broadening.

你会喜欢这些变化，而且你会发现你新的有教育意义的经验令人惊讶的加宽了。

With network being introduced into traditional media, and the broadening of people on-line, the network has become Infobahn and medium autobahn in work and deed,and become the accelerator oflife anagenesis of the society.

随着传统媒介纷纷上网和网民队伍的日益扩大，网络不仅成了真正意义上的"信息高速公路"和"媒介高速公路"，成为人类社会生命进化的加速器，而且正在将人的生存竞争演变为一种全新的数字竞争、传播竞争和网络生存竞争，并催生了一种前所未有的"网络化生活"和"地球村文化"。

The pulse width broadening of the femtosecond laser after angular dispersion wasdescribed,the pulse width expression at arbitrary propagation distance was provided,the pulse width broadening of the femtosecond laser by AOD was precisely predicted,thegeneral theory on pulse width broadening of plane wave,spherical wave and Gaussianbeam was deduced and the physical mechanism of pulse width broadening based on eachabove light beam model was revealed.

本文对随机扫描双光子显微镜中飞秒激光传输特性进行了系统深入的研究，完整解决了这一理论问题，发现了空间与时间色散通过角色散耦合的规律，为空间与时间色散同时补偿的方案提供了理论依据，基于此原理的单个角色散器件同时补偿空间和时间色散的方案高效解决了声光偏转器的色散补偿这一核心难题，为建立随机扫描双光子显微成像装置并应用于神经学研究奠定了基础：阐明了飞秒激光经角色散后的光斑展宽规律，获得任意传输距离处的光斑解析式，精确预测了声光偏转器对飞秒激光的光斑展宽，并揭示了光斑展宽的物理机制。

From the point of view of eliminating angular dispersion, the planar tilt errors and groove parallelism can ompensate each other, and the groove-width difference and planar errors of tip can also compensate each other.

标 签 光学器件拼接光栅压缩器时域特性脉冲展宽偏差补偿 optical devices tiled grating compressor temporal property pulse-broadening alignment errors compensation

After studying the effect of Doppler broadening on the inversionless optical gain of a four-level system driven by a coherent field, the general results of the effect of Doppler broadening are given.

虽然无反转激光只需在上能级有少量的粒子数布居即可实现激光输出，但如何泵浦高激发态能级仍是实现短波长激光的主要障碍。

By use of some atom parameters in optical-field-ionized plasmas obtained from the extended Cowan program based on Maxwell to suit any electron distribution with the help of additional program, the peak gain coefficient of Ni-like Kr system is calculated for the ion densities of 1×10 17 cm -3 and 3.2×10 17 cm -3 respectively after considering Doppler broadening and natural broadening.

利用自行编制的辅助程序将原来仅以麦克斯韦分布为基础的Cowan程序推广到适用于任意电子能量分布情形下获得的光场感生电离等离子中的一些原子参数，在考虑多普勒加宽和自然加宽，对离子数密度分别为1×1017cm-3和3.2×1017cm-3的情况下的类镍氪系统的增益系数进行了估算，理论上的峰值增益系数为14cm-1、141cm-1。

The spectral broadening is the key. At present, the spectral broadening by usinghollow fiber filled with noble gas is most feasible.

而光谱的展宽更是其中的关键步骤，目前利用冲惰性气体的中空光纤来进行光谱展宽，是最可行的方法。

At first, exposure dose distribution model of polar laser direct writing was established , and the cause of radial shift was analyzed. And then, the linewidth broadening model and radial shift model were established corresponding to object lens with numerical aperture 0.5, and the coupling relationship between linewidth broadening and radial shift was analyzed.

首先推导了极坐标激光直写的曝光量分布模型，分析了径向漂移产生的原因，然后针对数值孔径为0.5的光刻物镜建立了线条展宽模型和径向漂移模型，并分析了线条展宽和径向漂移的耦合关系，在此基础上分别建立了线条展宽补偿模型和径向漂移补偿模型。

A large difference exists between the convergence of the results with and without taking account of autoionization resonance broadening when the autoionization resonance broadening is the major broadening mechanism.

研究中考虑与不考虑自电离共振展宽，对x-射线透射谱计算的收敛速度大不一样，考虑了此效应，收敛速度快很多，而且得到的透射谱与实验测量谱符合更好。

For an aluminum plasma at a temperature of 40eV and a density of 0.0135 g/cm〓, the widths of the K-shell 1s-2p excited autoionization states of aluminum ions are larger than the widths caused by the Doppler and Stark broadening. Therefore, the autoionization resonance broadening is one of the main broadening mechanisms of spectral lines.

研究表明，对温度为40 eV，密度为0.0135g/cm〓的铝等离子体，1s-2p内壳层激发态的自电离共振宽度往往超过由Doppler展宽效应引起的宽度，因而前者是主要的谱线展宽机制之一。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。