原理

The content of this course mainly include the feature, equipment, principle and application of high efficient welding method, for example, activating flux assisted TIG welding, narrow gap TIG welding, hot wire TIG welding, oscillating arc TIG welding, plasma TIG welding tandem MIG welding, hybrid arc welding, surface tension transfer MIG welding, oscillating arc MIG welding, mixed-gas MIG welding, two wire or more SAW welding, friction stir welding and laser-MIG hybrid welding, etc.

主要内容涉及到助焊剂TIG焊技术、窄间隙TIG焊技术、热丝TIG焊技术、摆动电弧TIG焊技术、等离子弧焊技术的基本原理、设备、特点和应用。双丝焊MIG方法、复合电弧技术、表面张力过渡、摆动电弧MIG、交流MIG焊、混合气体MIG焊的原理、特点、设备和应用。双丝以及多丝埋弧焊技术、窄间隙埋弧焊技术的原理、特点和应用。搅拌摩擦焊以及激光电弧复合焊接的原理、特点、设备、应用范围。

Examples of different non-conservative systems were studied based on quasi-Hamilton principle and quasi-complementary Hamilton principle, and the uniform forms were obtained.

应用拟Hamilton原理和拟余Hamilton原理研究不同性质的非保守动力系统的算例，表明不同性质的非保守动力系统的拟Hamilton原理和拟余Hamilton原理均可写成统一的形式。

This dissertation firstly introduces the principles of four kinds of simple gridding methods, which are"Linear interpolation based on triangulation","Inverse distance weighted and averaged method","Modified Shepard's method"and"Multiquardirc method". Secondly, it researches the Ordinary Kriging method for geophysical irregular data, which mainly includes the base knowledge of region change and variogram and the principle of Ordinary Kriging method. Thirdly, it researches the Inverse Interpolation for geophysical irregular data, which mainly includes the principle of inverse interpolation and its iterative algorithm, and the principle of Inverse Interpolation to realize the gridding of geophysical data. Finally, it uses these gridding methods to grid theoretical model data of potential field and raw aeromagnetic data, and compares and analyzes the gridding results.

本文首先简单介绍了地球物理不规则分布数据的四种简单网格化方法(即基于三角网的线性插值法、反距离加权平均法、改进的Shepard方法和多元二次函数法)的方法原理；接着，重点研究了地球物理不规则分布数据网格化的普通克里金法，主要研究了区域变化量、变差函数的基础知识和普通克里金法的方法原理；之后，重点研究了地球物理不规则分布数据网格化的反插值法，主要研究了反插值法的方法原理和迭代求解算法，以及反插值法实现地球物理数据网格化的原理；最后，应用这些方法对理论位场模型和实际航磁数据进行了试验、对比和分析。

However this principle exhibits itself only in a multipartite quantum system, thus it is difficult to understand it in simple single particle quantum systems.

利用这一联系反过来可以帮助我们理解广义量子干涉原理，因为在量子计算机中一切计算都是普通的量子力学所允许的量子操作，因此广义量子干涉原理就是普通的量子力学体系所允许的原理，而这个原理只是在多体量子力学体系中才会表现出来。

Professional technical ability concerning correspondence engineering of control:A machine and a machine principle and application c++ the buider program design the spot the programmable preface machine a principle and application calculator correspondence the net distance controls to exchange the fiber-optic correspondence of the principle correspondence principle ambulation the correspondence modern correspondence system.

掌握的有关通信工程的专业技能：单片机以及单片机原理及应用 c++buider程序设计现场可编程序器件原理及应用计算机通信网程控交换原理通信原理光纤通信移动通信现代通信系统。

Therefore , it is necessary to set pre-pleading mediation proceeding according to protection principle of basic procedure right , principle of proportionable procedure and principle choice right of civil procedure in civil procedure law in our country .

我国有必要在民事诉讼法中规定诉前调解程序，诉前调解制度的构建应当遵循程序基本权保障原理，程序相称原理，程序选择权原理等基本原理。

Using the one-atom theory, the electronic structures of Pt-electrocatalyst with fcc structure was determined as follows:(5dn)6.48 (5dc)2.02 (6sc)1.48(6sf)0.02. Compared to the result obtained by the first-principle method such as FP-LMTO, CASTEP, their results are in good agreement with each other. Comparing the calculations of physical properties such as lattice constants, cohesive energy and bulk modulus by OA method and first-principle method, the result obtained by OA method is in excellent agreement with experimental value, but the result obtained by first-principle method is not accordable. The relationship between the electronic structures and catalytic performance was explained qualitatively by OA method and first principle method according to its electronic structures. Because the d-orbital vacancies increases and static density is high around Fermi energy band, Pt has good catalytic performance.

摘 要：依据纯金属单原子理论确定面心立方结构电催化剂Pt的电子结构为(5dn)6.48(5dc)2.02-(6sc)1.48(6sf)0.02，与采用第一原理的FP-LMTO和CASTEP等方法所计算的电子结构相比较，其结果非常相近；由OA理论和第一原理方法计算的晶格常数、结合能、体弹性模量等物理参数进行比较，OA理论计算的结果与实验值较符合，而第一原理方法计算的结果与实验值相差较大；在此基础上用OA理论和第一原理方法研究了Pt的电子结构与催化性能的关系，由于d带空穴增多和费米能级附近态密度较高，导致金属Pt的催化性能很好。

The philosophy of law Computer, economic maths bacis, basic western economics , principle on database and application, commerce law, e-business, business etiquette, market investigation and research, principle on statistics, business English correspondence and telecommunications, business communication, customs Clearance practice, Import and export practice, public relationship of enterprises

专业课程：管理学原理，国际商务，雅思英语，会计学原理，法律基础，计算机应用基础，经济数学基础，西方经济学基础，数据库原理及应用，商法，电子商务，商务礼仪，市场调查与研究，统计学原理，商务英语函电，商务沟通，海关报关实务，进出口业务模拟，企业公共关系。

Mainly introduce the work theory of loading material structure and the basic composition and control theory of unloading material structure of the tumbel blasting machine automatic load and unload system and the fluid driving system theory and the logical control theory of programmable logic controller.

主要介绍滚筒式抛丸机自动装卸系统的上料系统的工作原理、卸料机构的基本组成及控制原理、液压驱动系统原理、可编程逻辑控制器的逻辑控制原理。

This essay analyzes how the Iceberg Principle is reflected in Hemingway's "A Clean, Well-lighted Place", Presented in four parts: a brief introduction to the whole essay; major contents of the Iceberg Principle; a textual analysis of the short story in terms of style, images, emotions and thoughts, and a summary in the final part.

本文旨在分析&冰山原理&是如何体现在海明威的《一个干净明亮的地方》这一短篇小说中。全文包括四个部分：第一部分是对整篇论文的简要介绍；第二部分阐述了&冰山原理&的主要内容；第三部分是从&冰山原理&的四个特点，即从文风，形象，感情和思想的角度所进行的文体分析，最后一个部分是一个全文的总结。关键词：冰山原理；简洁的文风；鲜明的形象；丰富的感情；深刻的思想

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。