超比

This problem is also important and valuable in Nonlinear Optics. It will be very helpful to understand how the aberrations affect the course of three- wave mixing, such as the change of conversion efficiency, the distribution of intensity and phase.Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental waves aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立国防科学技术人学研究生院学位论文三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼一夏克传感器分别对IO64nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental wave's aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼-夏克传感器分别对1064nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

A semistable or unstable baryon with mass greater than the neutron.

超子一个不固定的重子，其质量比中子大

Microstructure and ultrastructure of thyroid of 3-6 month old Beagles were observed by light and electron microscopies.

应用光镜和透射电镜技术，观察了3～6月龄比格犬甲状腺的显微和超微结构。

Activity exceeds 75 becquerels of parent radioactive chemical element per gram of substance.

成的任何物质，或包含该等元素的任何物质，而其放射性比，以每克物质计算，超逾75贝克耳的源放射性化学元素。

Activity exceeds 75 becquerels of parent radioactive chemical element per gram of substance.

或包含该等元素的任何物质，而其放射性比，以每克物质计算，超逾75贝克耳的源放射性化学元素。

Chinese football completed its AFC Champions League retreat Tuesday night as Beijing Guo'an surrendered a 2-0 defeat to be knocked out by Suwon Bluewings at Suwon World Cup Stadium.

11日晚，北京国安在韩国水原世界杯球场以0比2负于水原蓝翼，被淘汰出亚冠联赛，至此中超球队全军覆没。

Chinese football completed its AFC Champions League retreat Tuesday night as Beijing Guo'an surrendered a 2-0 defeat to be knocked out by Suwon Bluewings at Suwon World Cup Stadium.

11日晚，北京国安在韩国水原世界杯球场以0比2负于水原蓝翼，被镌汰出亚冠联赛，至个中超球队全军覆没。

We have investigated effect of different amount of excessive Cd cations on growth of CMTC crystals.

研究了超化学计量比Cd离子对CMTC晶体生长的影响，发现晶体柱面与锥面所受的影响显著不同

Italian PIAGGIO company in on century 50\'s most classical most famous light cavalries motorcycle product, once because of "the Roman Holiday" the center miraculous glow one presently is all the rage the world at the movie, nowadays only has NEWRAY to obtain this section model the manufacture authorization, the extremely rare graceful modelling, the entire white, 1 to 6 ultra was great proportions, the entire vehicle completely is made by the zinc base alloy material quality, left side of trailing wheel Chu Wuxiang all might open, the steering handle might rotate, all wheels all are the activities, evaded including the trailing wheel shakes is hanging all is the genuine spring oh, entire Che Anyuan vehicle entire simulation manufacture, The ultra fine paint surface works, entire Che Touzhuo a Italy character and style is in sole possession of romantic breath, also does not lose the detail to decide all perfect principles!

意大利 PIAGGIO公司在上世纪50年代最经典最著名的轻骑摩托车产品，曾因在电影《罗马假日》中的灵光一现而风靡全世界，现今只有NEWRAY得到该款模型的制作授权，非常罕见的优雅造型，全白色，1比6超大比例，整车全部由锌合金材质制成，后轮左侧的储物箱都可打开，车把可转动，所有车轮都是活动的，连后轮避震悬挂都是真正的弹簧哦，整车按原车全仿真制造，超精致的漆面做工，全车透着一股意大利风情独有的浪漫气息，也不失细节决定一切的完美主义！

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。