如上所述，激光束比其他光束要强烈得多。
建筑物的灯光看起来跟星星似的。而世贸中心废墟零点地带的纪念光束比这些建筑物更有迷惑性。
The buildings resembled stars. Outshining them all was the Tribute in Light above Ground Zero.
他们利用红外线激光束捕获超冷锂原子气团，将其冷却到仅比绝对零度高亿分之十五开尔文。当逐渐增加原子间斥力时，研究人员观察到的几个现象表明气体已经变得具有强磁性。
When they gradually increased the repulsive forces between the atoms, they observed several features indicating that the gas had become ferromagnetic.
这两个装置都可以实现科幻小说中用光束拖动回收物品，不过它们还不可以移动比细菌大的东西，更不要说一艘星舰了。
Each device would fulfill the science fiction dream of reeling in objects using light -though neither could move anything bigger than a bacterium, much less a starship.
数据在光盘上的排列比在软盘或硬盘上更加紧密，原因是激光束可以比磁头聚焦到更小的点上。
Data can be crammed much tighter on a CD than on a magnetic floppy or hard drive because a laser beam can be focused to a much smaller point than magnetic heads.
本文利用光束变换公式分析了高斯光束通过望远镜系统的传播，讨论了最大扩束比问题。
In this paper, the propagation of Gaussian beams in a telescope system is analysed by using beam transformation formulas. The maximum beam expanding ratio is discussed.
获得了常用遮拦比条件下均强聚焦光束光斑扩展和湍流效应特征参数的定标关系。
Moreover, the scaling relation between the beam spreading and the characteristic parameter described turbulence effects is derived.
分析了几种不同的动态聚焦系统的特点，给出了激光束通过该系统的变换公式以及光杠杆比和透镜焦距的确定方法。
The several dynamic focus systems are analyzed. The transmission formulas of laser through them and the way to define the optical lever ratio and the focus of lens are given.
利用光束合成可获得比单个激光输出功率更高的激光束。
Maked use of beam combination, laser power will be achieved higher than single output of laser.
数值计算结果表明，功率(能量)集中度与光阑的遮拦比、光束截断参数以及振幅调制和位要畸变参数等有关。
Numerical calculation results show the dependence of the power (energy) focusability on the obstruction ratio, truncation parameter, the amplitude modulation and phase fluctuation parameters.
结果表明，对于均强聚焦光束湍流大气传输，在弱湍流效应条件下，光斑扩展受遮拦比影响较大；
The results show that the obscuring ratio has obvious influence on the beam spreading in weak turbulence.
而增大记录光与门光束的光强比，可以提高双色记录灵敏度。
The experimental results show that the decrease of the intensity ratio of writing to gating beam and the increase of the gating...
提出了一种精密调节激光烧蚀速率的方法——双光束技术，得到了比单光束技术约高两个数量级的调节精度。
A two-beam technique has been presented as a new method to adjust laser-ablation rate. An adjust accuracy of about two orders of magnitude higher than that in usual one-beam technique was obtained.
这两个装置都可以实现科幻小说中用光束拖动回收物品，不过它们还不可以移动比细菌大的东西，更不要说一艘星舰了。
Each device would fulfill the science fiction dream of reeling in objects using light —though neither could move anything bigger than a bacterium , much less a starship.
相干长度越小、光束阶数越大，部分相干平顶光束序列的斯特列尔比受湍流影响越小。
The strehl ratio of PCFT beam array with small coherence length and bigger beam order are less affected by turbulence.
相干长度越小、光束阶数越大，部分相干平顶光束序列的斯特列尔比受湍流影响越小。
The strehl ratio of PCFT beam array with small coherence length and bigger beam order are less affected by turbulence.
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