查询词典 common field

These events are characterized by the common developing process and an unified evolutional history of precursory field.

它们有一个共同的孕育过程，因而具有统一的前兆场的演化历史。

This paper first analyses and summarizes the ststus quo and evolution trend of encryption, some common used cryptograph are introduced, including the algorithms used in symmetric cryptosystem and asymmetirc cryptosystem. We describe the theory of each algorithms and compare the elliptic curve cryptosystem with the other two asymmetric cryptosystems to show the advantages of this algorithm. Second, the principle of ECC is discussed, including the math foundation of ECC, basic conception of elliptic curves, constructiong idea of ECC, operation on the elliptic curve and so on. Third, the current attacks of ECC were analyzed deeply, and an algorithm based on limited prime number field was constructed. We analyzed its realizability in theory, and implement it by using certain function of MIRACL software package. Latter half in this paper, the implementation model of a simple elliptic curve encryption system which based on GF has been introduced. The paper also put a deep analysis on the algorithm of point addition and point multiplication.

本文首先对密码技术的发展现状及其发展趋势进行了分析和综述，详细的介绍了私钥密码系统和公钥密码系统的发展，说明各种算法的原理和优缺点，并给出了一些典型的密码体制的简要分析，重点将椭圆曲线算法与其它几种公钥密码算法比较，说明椭圆曲线算法的优势；其次，探讨了椭圆曲线密码体制的原理，包括椭圆曲线密码的数学基础、基本概念、椭圆曲线密码体制的构造思想等问题；第三作者对椭圆曲线的攻击现状作了详细的分析，针对所使用的大素数域F_p，设计了素数域上安全椭圆曲线产生的算法，从理论上做了可实施性分析，从软件上做了具体实现；在本文的后半部分，提出了一个简单的基于有限素数域上的椭圆曲线加密方按算实现模型，并对SECES中设计的点加和点乘运算进行了深入分析。

In this paper, in view of the working condition of common principal axes and the exothermic situation, the uneven and steady temperature field of the principal axis system during the working process is described.

主轴是机床或仪器等精密机械的核心构件，它也是影响精度的主要因素，主轴系统的热变形对机械的工作精度影响也很大。

Is also the world's top manufacturer of paraffin Central Germany±a Chinese agent Reseda Binder company was founded in 1913 Reseda Binder's are the world's oldest manufacturer of paraffin ring .90 years of production history, making it a leader in the field, and its excellent quality, and fully by the world-renowned maker of textile machinery common recognition, becoming spinning machine through designated original Product.

济南英联贝克机械设备有限公司同时也是世界顶级石蜡环制造商德国瑞斯达宾得公司Reseda Binder中国总代理成立于1913年的Reseda Binder是世界上历史最悠久的石蜡环生产商。90年的生产历史，使其成为该领域的领导者，它的卓越品质，充分得到了世界著名纺机商的共同认可，成为纺机商指定的原配产品。

On the basis of analyzing the common methods of background magnetic field compensation,a new automatic compensation method based on sample and hold circuit is put forward.

在分析磁通门常用背景磁场补偿方法基础上，提出一种新的采样保持电路自动补偿方法。

Hua Xin Zhong An has advanced wireless Long-range surveillance technology and military digital encryption techniques. We can provide reliable long-range surveillance service for those common technology can not be reached areas, such as oil field, shipside, diggings, storehouse, etc.

华信中安以先进的无线远程监控技术及军用级的数字加密方式，可为油田、码头、矿厂、重要仓库等一些传统布线无法满足的部位提供可靠的远程监控技术。

Hua Chuang Zhong An has advanced wireless Long-range surveillance technology and military digital encryption techniques. We can provide reliable long-range surveillance service for those common technology can not be reached areas, such as oil field, shipside, diggings, storehouse, etc.

华创中安以先进的无线远程监控技术及军用级的数字加密方式，可为油田、码头、矿厂、重要仓库等一些传统布线无法满足的部位提供可靠的远程监控技术。

Hua Chuang Zhong An has advanced wireless Long-range surveillance technology and military digital encryption techniques. We can provide reliable long-range surveillance service for those common technology can not be reached areas such as oil field shipside diggings storehouse etc.

华创中安以先进的无线远程监控技术及军用级的数字加密方式，可为油田、码头、矿厂、重要仓库等一些传统布线无法满意的部位提供可靠的远程监控技术。

The building of soft science and the science and technology studies must be combined,which is the common understanding of the academic field,which is also the requirement for building a harmonious society.

用现代科学的观点来看，它指的是以自然界事物为研究对象的科学知识。19世纪30~40年代产生了实证主义，它的代表人物是法国的孔德和英国的穆勤。

In the field of packaging design, to color and spot-color of the application very common, many wraps the user in order to make your product different from others, usually takes four color business card printing and membership card making plus spot color business card printing and membership card making, need printing gold ink, silver monlchamus, or pearlescing.

而在包装设计中，实地色块和专色的应用非常普遍，许多包装用户为了使自己的产品与众不同，通常采用四色制卡和会员卡制作加专色制卡和会员卡制作的方式，同时需要印金墨、银墨、珠光墨或上光。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。