原理

First of all, the work on the beltconveyor characteristics, Development, principle, classificationand secondly, the friction on the tape drive principle; Finally,the working conditions under their belt conveyors, including thetransmission of the slowdown Is part of a detailed design anddesign calculations, the simple analysis of the belt materialdeviation and spread the causes and solutions, has introducedseveral other forms of belt machine.

首先，介绍了带式输送机的工作特点、发展概况、工作原理，分类；其次，介绍了胶带的摩擦传动原理；最后，根据带式输送机的工作条件对其计算，其中对传动部分的减速器部分进行了详细的设计及设计计算，简单分析了皮带跑偏及撒料的原因和解决方法，又介绍了其他几种形式的皮带机。

Afterwards, thought the real case of FRITT Institute, it sets a good example of IPD application by fully illustration on how to adjustment product development system, organization structure and process management, and so on ,to build up market-, customer-oriented and cross functional product development process.

接着通过FRITT研究所公交车载仪开发项目的实际案例，介绍了如何应用IPD原理进行产品开发体系调整、产品开发组织结构和流程整合，建立面向市场的、跨部门团队的集成产品开发流程。最后，结合本人在工作中的实际经验和教训，探讨了应用IPD原理在产品开发的启示。

The explanation is to be found in the principle of the equivalence of mass and energy in which (修饰 principle) Einstein stated that mass and energy are different forms of the same fundamental quantity.

从质量和能量的等效原理中可以找到解释，在这一原理中，爱因斯坦证明了质量和能量时同一基本量的两个不同形式。

The fundamental theorem of CRC and phase-locked loop was discussed.

本文首先从理论上讨论了时钟恢复电路的基本原理与构造，重点放在时钟恢复电路的核心-锁相环的原理和构造上。

Firstly, the research studies the coding rule of the PDF417 barcode and designs related computer code algorithm, with making it programmed, and completes the coding part of the system software. Next, the coding and decoding principle of Reed-Solomon error-correcting code is briefly introduced. According to thecoding and decoding principle in galois field GF(929), to analyze and study its practical application with emphasis in this topic. Then, the PDF417 barcode decoding process is analyzed and studied detailed according to the barcode coding principle, with the corresponding realization method designed, improving the design in theory aspect by using material example, at the same time programming the design method to complete the decoding part of the system. Finally, validated the system program in the practical application of image information aspect, by using the nonrepeatability and the randomicity characteristic of Julia mark shape artwork.

本课题首先研究PDF417条码的编码规则并设计相关的计算机编码算法使其程序化，完成系统软件的编码部分；其次，简要介绍Reed—Solomon错误控制码的编码与译码原理，在伽罗瓦域GF(929)内根据其编译码的原理重点分析与研究其在本课题中的实际应用；然后根据条码的编码原则对PDF417条码的译码过程进行详细的分析与研究，并设计出相应的实现方法，利用具体实例对设计方法进行理论方面的实践同时将设计方法程序化完成系统软件的译码部分；最后利用Julia集分形图形的不可重复性和随机性的特点对系统软件在图像信息方面的实际应用进行了验证。

This article introduced the numerical control gear cutter's basic structure, the principle of work, gear cutter various movements' realization and controls, gear cutter related part's computation and monolithic integrated circuit control procedure diagram, electric control principle.

本文介绍了数控铣齿机的基本结构，工作原理，铣齿机各运动的实现及其控制，铣齿机有关部件的计算及单片机控制程序框图，电气控制原理。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具进行了设计：大直径三通管冲压复合模设计解决了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,代写医学论文,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具入行了设计：大直径三通管冲压复合模设计盖世了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

The paper introduces the working principle of the whole system of gold foil manipulating automaton and PLC control system.

中文摘要：介绍了金箔装叠精细操作机器人自动化系统总体工作原理及PLC控制系统原理。

The fundamental principle of inertial navigation is based on the principle of equivalence of inertial mass and gravitational mass.

惯性导航的测量原理基于惯性质量和引力质量等效原理。

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。