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It is known theoretically that to the variational problem with weak constraints in cost functional J, its Euler equation can be discreted into difference format, by using matrix theory and difference method of partial differential equation we know that there exists optimal selection of weight factors in the cost functional under the condition of minimal variance between analysis field and ideal field.

从理论上可知，对于目标泛函J带有约束条件的变分问题，将其Euler方程离散成差分形式，利用矩阵理论和偏微分方程的差分方法，则目标泛函的权重因子，在分析场和理想场的最小方差意义下存在最优选取。

The system is composed of trust model, structure and function design, certificate database design, and implements the core functions of a standard CA system including signing, issuing and revoking certificates. The security communication modular of the system is based on the SSL Protocol to enhance the security of system communications. Besides, the kernel functions of the system are packed into DLL library, including symmetrical encryption algorithms, digest algorithms, digital signature algorithms and certificate operations such as certificate request, certificate building, certificate format conversion etc.

本文的主要工作是：在研究PKI相关技术的基础上，设计了企业CA系统方案，包括信任模型、结构和功能设计、证书库的设计；实现CA系统中最为核心的数字证书管理，提供数字证书的签发、注销和发布等各项功能；实现了基于SSL协议安全通信模块，增强了系统通信的安全性；系统采用动态链接库技术封装了对称加密算法、数字摘要算法、签名算法以及证书处理(包括证书请求、证书生成、证书格式转换等功能)，以动态链接库的形式提供调用接口，成为应用的安全基础设施。

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems)- Part 11: HDV format for 1080i and 720p systems

录制。为用户使用的(525-60.625-50，1125-60和1250-50系统)用6，35mm磁带的螺旋扫描数字视频盒式录制系统第11部分： 1080i 和720p系统的HDV格式

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 7 : EDTV2 format.

为用户使用的(525-60、625-50、1125-60和1250-50系统)用6.35mm磁带的螺旋扫描数字视频盒式记录系统。

10 Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 10 : DTV format.

客户用的(525-60.625-50，1125-60和1250-50系统)用6.35mm磁带的螺旋式扫描数字盒式录像带录制系统。

9 Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 9 : DVB-Format.

客户用的(525-60.625-50，1125-60和1250-50系统)用6.35mm磁带的螺旋式扫描数字盒式录像带录制系统。

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 3 : HD format for 1125-60 and 1250-50

客户用的(525-60、625-50、1125-60和1250-50系统)用6.35mm磁带的螺旋式扫描数字盒式录像带录制系统。

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems - Part 6 : SDL format.

客户用的用6.35mm磁带螺旋式扫描数字盒式录像带录制系统(525-60，625-50，1125-60和1250-50系统)。

Nanjing chip franchise JAPAN digital engineering copiers, Chip Starú, Japan Canon plotter, chip digital printers, wide-format color scanners, is a talent-based, technology as a means for the purpose of Service , the country's science and technology-oriented product sales service company.

南京奇普办公设备有限公司专营日本数码工程复印机，奇普之星晒图机，日本佳能绘图仪，奇普数码打印机，宽幅彩色扫描仪，是一家以人才为基础，技术为手段，服务为宗旨，面向全国的科技产品销售服务公司。

In other words, these three kinds of digital signals which are likely to be the future of digital television signal format.

也就是说，这三种数字信号哪一种都有可能成为未来的数字电视信号格式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。