精确地

Human brain function similar to the central processing unit installed on the motherboard on the above, it has a superhuman memory and rapid calculation function of precision, it can be scheduled in accordance with the procedures for people to not hesitate to complete the instruction, as well as network traffic as the memory, it can provide more paths and channels to the computer, the faster the computer more efficient, to let the computer voice would also like to assemble a deal with the sound card sound files, as the screen reader software At the same time, prompted the need for sound playback, sound card, therefore the request is relatively high, the best selection of full-featured dual-channel sound card.

类似人脑功能的中央处理器就安装在主板上面，它具有超人的记忆能力和精确快速的运算功能，它能够按照人们预定的程序毫不犹豫地去完成各项指令，还有就象交通路网的内存，它能够提供更多的路径和通道给计算机，使得计算机的运算速度更加快捷，要让计算机能够发出声音还要装配一个处理声音文件的声卡，由于读屏软件所需要同时播放提示声音，因此声卡的要求比较高，最好选用功能齐全的双声道声卡。

Especially, the neumerical result would be accurate over the rational number field.

特别地，在有理数域上用计算机求得的结果是精确的。

The improved algorithm supplied the exact reference phase for current d-q transformation,then detection accuracy of the algorithm wasn t influenced by voltage distortion,so it can detect the harmonic and reactive component of load current effectively.

该改进算法为电流的d-q变换提供精确的参考相位。采用改进的检测算法，电压畸变不会影响该算法检测的精确度，并能有效地检测负载电流的谐波与无功分量。

The research work presented in this dissertation focused on developing the scheme and techniques of OPCPA. This dissertation gives the results of the theoretical and experimental investigation on OPCPA scheme. The validation of OPCPA at high energy level was demonstrated successfully. And some important results were achieved. Several key techniques related to developing table-top ultra-intense and ultra-short OPCPA laser system were put forward, for example, the generation of femtosecond seeding pulses, the precisely temporal synchronization of the pump and signal pulses, the pulse stretching and recompression, the OPCPA process with high energy conversion efficiency and etc. Based on the integration of these key techniques, a 1.46-TW/153-fs OPCPA table-top ultra-intense and ultra-high laser system has been developed, which, to the best of our knowledge, has generated laser pulses with the shortest pulse duration and the highest peak power among the joule level OPCPA systems in the world.

本学位论文工作主要是瞄准 OPCPA 这一国际上提出不久并处于初级阶段的新概念，重点开展了 OPCPA 新原理的理论模拟、实验验证，以及基于 OPCPA 新原理的小型化超强超短激光系统的研究与发展，创造性地解决关键科学技术问题，建立并发展相关关键科学技术，如超短脉冲种子源的产生、小型化强激光泵浦源的研制及其脉冲的整形、信号光与泵浦光的精确同步、高效率光学参量放大及高保真脉冲展宽与压缩等关键技术，并在单元技术的总体集成方面取得了重大创新性进展与突破性研究成果，获得了国际上高量级泵浦条件下 OPCPA 激光研究中峰值输出功率最高且脉冲宽度最短的总体领先结果。

China's stellar reconnaissance camera is used to accurate determination of satellite and the location of ground targets.

中国侦察卫星上的恒星相机是用来精确测定卫星及地面目标的位置的。

JG-19 adopt exact numeric control, it can keep ten programme and you can rejigger it freely. Use double impulses can make sure the jointing fastness and good surface. Seven segment LED display all seal data. JG-19 uses double gas jar power, desk can litre and lower by stepless and use hand lock. The electrode can adjust in all the position, so worker can seal all kinds figure and measurement easily.

JG-19采用精确的数字控制，能预存10个程序，并可随意更改、调用；运用双脉冲可确保焊接牢固、焊点美观；7段LED显示各焊接参数，JG-19更采用双气缸动作，工作台无级升降手拧式锁紧，电极立体式调节，使操作者可以轻易地焊接各种形状、尺寸的材质。

Architecture description languages and their accompanying toolsets have been proposed as the answer. The XYZ/E is an executable linear temporal logic language. It can represent both dynamic and static semantics of systems. Basing on XYZ/E, the executable linar temporal logic language, we provide an architecture description language XYZ/ADL, which can represent both high-level abstract specification and the concrete implementation, thereby provides premise for the smooth transition from specification to implementation. And it can represent both the specification and the inner structure of a component under the unified logic framework, owing to the representability of the XYZ/E.

本项目研究旨在根据XYZ系统的特性，在时序逻辑语言XYZ/E的基础上，提出一种支持在XYZ系统中设计软件体系结构的描述语言XYZ/ADL，使之不仅能够对软件体系结构进行精确的形式化描述，而且为对其进行求精、验证、演化和分析提供基础，从而能在统一的时序逻辑框架下描述组件的规范和它的内部结构，并逐步过渡到最后的算法实现，从而能够支持软件开发设计的逐步求精全过程，把原有的两种支持软件开发的方法即支持模块化程序设计的方法和支持从规范到算法实现的逐步求精的方法有机地结合起来。

How to determine the phase retardation of crystal precisely and conveniently has continuously been paid attention to.

如何精确而又方便地测定晶体的相位延迟量一直受到人们的关注。

The pump eliminates the effect of channel-length modulation and makes the charging and discharging currents match perfectly in a wide output range to minimize the ripple of the control voltage.

该电荷泵结构可以很好地克服沟道长度调制效应的影响，使充放电电流在宽输出电压范围内实现精确匹配，从而使频率综合器的压控电压纹波很小。

Experimental results show that the algorithm can accurately and robustly segment the video object.

实验结果表明，本文提出的算法能精确、鲁棒地分割出视频对象。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。