包邮电气信息类专业英语阅读与写作

前言part1 basic program  unit1 单句写作基本语法    1.1 词类    1.2 插入语、否定、时态、语态、形容词和副词比较级    1.3 动词非谓语形式    1.4 从句part 2 science and professional english  unit 2 stampede on the superhighway  unit 3 traffic technology drives to clear the roads  unit 4 the robot farm  unit 5 analysis of sinusoidal current and voltage    5.1 rms (effective) values of current and voltage    5.2 representation of sinusoidal time functions by vectors and complex number    5.3 addition of sinusoidal time functions  unit 6 construction and application of dc machines    6.1 construction of dc machines    6.2 application of dc machines  unit 7 research on integrated monitoring and prevention system for stray current in metro    7.1 the generation of stray current and it's harmfulness    7.2 the problems existing in the conventional monitoring and prevention system for stray current    7.3 the research on new integrated monitoring and prevention system for stray current    7.4 conclusion  unit 8 railway electric power feeding systems    8.1 introduction    8.2 world railway electrification systems    8.3 history of railway electrification in japan    8.4 various feeding systems    8.5 overhead line systems    8.6 materials in overhead lines    8.7 maintenance ofoverhead linespart 3 focus on writing  unit 9 英文书信及常用应用文的写作    9.1 信封的写法    9.2 书信的组成部分和页面安排    9.3 常用应用文简介  unit 10 formal letters in english    10.1 namecards    10.2 conventions offormal letters writing    10.3 formal and informal styles    10.4 transition task  unit 11 using statistics    11.1 using tables    11.2 using bar charts and pie charts    11.3 using graphs    11.4 using charts and graphs：writing task  unit 12 科技英语中数字及数学公式的表达    12.1 数制的问题    12.2 数字及数学公式表达中常用的词汇    12.3 科技英语中常用符号及数学式  unit 13 科技英语论文写作    13.1 科技论文的组成部分    13.2 摘要(abstract)    13.3 科技论文及其摘要的写作注意事项    13.4 科技论文本身内容的构成part 4 scientific paper expansion reading  unit 14 analysis of rail potential and stray current for taipei metro    14.1 introduction    14.2 characteristics oftraction power substations grounding    14.3 field tlests    14.4 design ofthe simulation model    14.5 field test and simulation results    14.6 conclusion  unit 15 study on integrated automation system of traction substation for express railway lines    15.1 introduction    15.2 characteristics    15.3 structure    15.4 functions    15.5 applications  unit 16 stray-current corrosion control in metros    16.1 introduction    16.2 rusting    16.3 prevention of rusting    16.4 passivation    16.5 separate earthing systems    16.6 controlling stray currents    16.7 bonding    16.8 alternatives    16.9 monitoring    16.10 trends    16.11 acknowledgement  unit 17 stray current corrosion in buried pipeline    17.1 introduction    17.2 background    17.3 experimental    17.4 results    17.5 discussion    17.6 conclusions  unit 18 simulation analysis of zhengzhou metro power supply system rectifier unit    18.1 introduction    18.2 simulation model    18.3 harmonic analysis of power supply system    18.4 conclusions  unit 19 analysis and design of a single-axis automatic solar tracking and power filtering system for solar power generation    19.1 introduction    19.2 solar tracking dynamics-single axis tracking near the earth's equator    19.3 single axis solar tracking control circuit design    19.4 solar power filtering system    19.5 conclusion