查询词典 origin and development

In this paper we have described the origin and way of development of pack t satellite communication and pointed out its status and function in the future.

本文综合介绍了分组卫星通信的发展过程，并指出了它在未来通信中的地位和作用。

Owing to the importance of Disquisitiones Arithmeticae in histoiy of number theory and the core position of the congruent theory in elementary number theory, this paper is to focus on the following two topics: the origin and development of Fermats little theorem and the quadratic reciprocity law which was hailed as golden by Gauss.

鉴于《算术研究》在数论发展史上的重要性以及同余理论在初等数论中的核心地位，本文重点研究费马小定理和被高斯誉为"黄金定律"的二次互反律的起源和发展。

This article first briefed the mechanical and electrical products export development present situation; Then has carried on the analysis on TBT to the mechanical and electrical products export's influence and the origin; Finally from the enterprise, the government two wide angles proposed the corresponding countermeasure separately

本文首先介绍了机电产品出口的发展现状；然后就TBT对机电产品出口的影响和成因进行了分析；最后分别从企业、政府两大角度提出了相应的对策。

The origin、 development and present state of the container ship2. The deformation characters and collapse mode of the container ship3. The basic theory of thin-walled structural mechanics: The bending of the thin-walled beam; The unconstrained torsion of the thin-walled member bar; The constrained torsion of the thin-walled member bar with opening; The constrained of the thin-walled member bar with closed port.4. The calculation of the warp stress in the container ship based on the thin-walled structural mechanics theoryModeling of the hull ladder calculation based on referred mechanics theories of thin-walled member bar, calculation of crankle character of the each section, such as sectional coordinates、 Free twist shear flow、 secondary shear flow、 bend shear flow and so on.

本文主要包括下述六个方面的内容： 1 集装箱船的起源、发展和现状 2 集装箱船变形特征和破坏形式 3 薄壁结构力学的基本理论◇薄壁梁的弯曲；◇薄壁杆件的自由扭转；◇开口薄壁杆件的约束扭转；◇闭口薄壁杆件的约束扭转 4 利用薄壁结构力学理论计算集装箱船的翘曲应力建立船体阶梯计算模型，利用薄壁杆件力学中相关理论，求解各断面单元的弯扭特性，包括：扇性坐标、自由扭转剪流、二次剪流、弯曲剪流等。

The origin, development and evolution of Culpa in cortrahendo in different countries, and the different embodiments of this principle in Civil Law, Anglo-American Law and international law, are discussed.

在第一章"缔约过失责任的历史考评"中，主要阐述缔约过失理论的起源，产生和发展以及在不同国家的演变，包括在大陆法系、英美法系及国际立法上的不同体现。

for long time, the primary school living to the writing widespread existence "sorrow, afraid, be disgusted with" of thought.but the composition teaching of tradition, the teacher set question from the composition, purpose, choose a material, row to lift a key link to the workbook to review to change, whole one person contract for and resulted in thus student can according to teacher design good"diagram paper" lay bricks, the composition contents be deceitful and empty and lack a kid true, monotonous phenomenon, complete deprival student's workbook of independence power.in fact, composition's being not only be the operation of the language sign.left a person of development, left life, composition will is have no the wood of origin, have no source of water.

长期以来，小学生对写作普遍存在着"愁、怕、厌"的思想。而传统的作文教学，教师从作文命题、立意、选材、列提纲到习作评改，全一人包揽，从而造成了学生只能按教师设计好的"图纸"砌砖，作文内容虚假、空洞，缺乏童真，千篇一律的现象，完全剥夺了学生习作的自主权。其实，作文并非仅是语言符号的操作。离开了人的发展，离开了生活，作文就将是无本之木，无源之水。

Focus on the origin of Weierstrass\' Complex Analysis, considering to external and internal causes are the development of complex function in 19~ century reviewed, and three basic approaches lead to complex analysis, namely, algebraic analysis, integral and geometry are introduced.

指出了德国数学组合分析与古德曼的级数工作以及分析严格化要求的共同影响，构成了魏尔斯特拉斯发展复变函数理论的动机。2。

Based on the origin and development trend of world sustainable agriculture, this article, in an all-round way, explains the conditions, reasons and ways of developing China in developing sustainable agriculture and points out that modern intensive sustainable agriculture is th...

本文以世界可持续农业的缘起和发展趋势为前提，全面阐释了中国发展可持续农业的条件、原因和途径，指出现代集约持续农业是21世纪中国可持续农业发展的必由之路。

And then it discusses origin and development of contrastive linguistics, and its situation in China.

讨论了对比语言学的渊源、发展及在中国的现状。

PY30-1 structure, accompanied with the development of diapirs, is an important petroliferous structure. To clarify the process of hydrocarbon accumulation, hot fluid activities were confirmed in the PY30-1 structure of the Panyu Low Uplift, the origin of oil and gas and the evolution of overpressure were studied and the hydrocarbon accumulation was analyzed.

PY30-1构造是珠江口盆地番禺低隆起一个发育底辟体的重要含油气构造，为揭示其油气成藏规律，在确定该构造存在热流体活动的基础上，研究其油气来源和超压演化，并进一步分析油气成藏过程。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&