外文翻译

大连交通大学2014届本科生毕业论文外文翻译

外文原文

Pulse-width modulation

Pulse-width modulation (PWM)is a modulation technique that conforms the width of the pulse, formally the pulse duration, based on modulator signal information. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers,[1]

A Survey Paper on Radio Frequency IDentification (RFID) Trends Abstract

This paper provides a survey on radio frequency identification (RFID) technology. Initially RFID tags were developed to eventually replace barcodes in supply chains. Their advantages are that they can be read wirelessly and without line of sight, contain more information than barcodes, and are more robust. The paper describes the current technology, including the frequency ranges used and standards. With the increasing ubiquity of RFID tags, however,

Who are informal business owners?

Many firms in developing countries are informal, that is they operate without registering with the government. For example, in a labor market survey of Mexico, nearly 50 percent of business owners report that their firm is not registered with the authorities.

Different explanations have been put forth to explain why firms operate informally. One view, associated with De Soto (1989), is that informal business owners are viable entrepreneurs who are being held back from registering th

外文翻译

目 录

1简介....................................................................................................................................... 2 2背景....................................................................................................................................... 2 3 RTP用法 ............................................................................................................................. 3

3.1标记(M) ............................................................................................

[键入文字]

浙江工业大学教科学院

毕业论文外文资料翻译

论文题目：基于信息化技术的中职《数控加工机械基础》交互式习

题库开发研究

学生姓名： 何三丰 。 学 号： 201107780107 。 专 业： 机械工程及自动化教育 ，

指导教师： 楼建勇 ， 2014年12月24日 [键入文字]

[键入文字]

外文出处:

1.Vocational education faculty students’impressions of practice teaching schools and teachers

2.Developing information literacy and critical thinking skills

through

domain

knowledge

learning

indigital

classrooms: An experience of practicing ?ipped classr

前言

提高塔式复合人工湿地处理农村生活污水的脱氮效率

Fenxia Ye，Ying Li 著，黄黎明译

1

【摘要】努力保护水源，尤其是在乡镇地区的饮用水源，是中国污水处理当前面临的主要问题。氮元素在水体富营养化和对水生物的潜在毒害方面的重要作用，目前废水脱氮已成为首要关注的焦点。人工湿地作为一种小型的，处理费用较低的方法被用于处理乡镇生活污水。比起活性炭在脱氮方面显示出的广阔前景，人工湿地系统由于溶解氧的缺乏而在脱氮方面存在一定的制约。为了提高脱氮效率，一种新型三阶段塔式混合湿地结构----人工湿地（thcw）应运而生。它的第一部分和第三部分是水平流矩形湿地结构，第二部分分三层，呈圆形，呈紊流状态。塔式结构中水流由顶层进入第二层及底层，形成瀑布溢流，因此水中溶解氧浓度增加，从而提高了硝化反应效率，反硝化效率也由于有另外的有机物的加入而得到了改善，增加反硝化速率的另一个原因是直接通过旁路进入第二部分的废水中带入的足量有机物。常绿植物池柏（Taxodium ascendens），经济作物蔺草（Schoenoplectus trigueter），野茭白（Zizania aquatica），有装饰性的多花植物睡莲（Nymphaea tetragona）

南京邮电大学通达学院 毕业设计(论文)外文资料翻译

学 院 专 业 学生姓名 班级学号 外文出处

计算机科学与技术（计算机通信）

外文期刊

附件：1.外文资料翻译译文；2.外文原文

指导教师评价： 1．翻译内容与课题的结合度： ■ 优 □ 良 □ 中 □ 差 2．翻译内容的准确、流畅： □ 优 ■ 良 □ 中 □ 差 3．专业词汇翻译的准确性： □ 优 □ 良 ■ 中 □ 差 4．翻译字符数是否符合规定要求：■ 符合 □ 不符合 指导教师签名： 年 月 日

附件：1 译文

Java编程思想

Bruce Eckel

Java和因特网

事实上Java 不过另一种类型的程序设计语言，大家可能会问它为什么会如此重要，为什么还有这么多的人认为它是计算机程序设计的一个里程碑呢？。Java 除了可解决传统的程序设计问题以外，还能解决World Wide Web（万维网）上的编程问题。

什么是wbe？

Web 这个

A Survey Paper on Radio Frequency IDentification (RFID) Trends Abstract

This paper provides a survey on radio frequency identification (RFID) technology. Initially RFID tags were developed to eventually replace barcodes in supply chains. Their advantages are that they can be read wirelessly and without line of sight, contain more information than barcodes, and are more robust. The paper describes the current technology, including the frequency ranges used and standards. With the increasing ubiquity of RFID tags, however,

Who are informal business owners?

Many firms in developing countries are informal, that is they operate without registering with the government. For example, in a labor market survey of Mexico, nearly 50 percent of business owners report that their firm is not registered with the authorities.

Different explanations have been put forth to explain why firms operate informally. One view, associated with De Soto (1989), is that informal business owners are viable entrepreneurs who are being held back from registering th

广东工业大学 华立学院

本科毕业设计（论文）

外文参考文献译文及原文

系 部 机电工程学部 专 业 电气工程及其自动化 年 级 2008级 班级名称 08电气工程4班 学 号 12030804035 学生姓名 覃 烽 指导教师 陈黄飞

2012 年 6 月

目 录

外文文献译文................................................................................................................ 1 外文文献原文.............................................................................................................. 18

外文文献译文

AT89S52简介

1功能特性描述

AT89S52 是一种低功耗、高性 能CMOS