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PART A Text 1

Lesson One Material Selection 1

Lesson Two Kinds of Steel 6

Lesson Three Properties of Metals and Heat Treatment of Steel 10

Lesson Four Forging， Stamping and Rolling 15

Lesson Five Lubrication 19

Lesson Six Hydraulic Power Transmission 25

Lesson Seven Introduction to Mechanical Design 28

Lesson Eight Introduction to Design of Mechanism Systems 34

Lesson Nine Machine Elements 39

Lesson Ten Gears 43

Lesson Eleven Shafts and Couplings 47

Lesson Twelve CAD and Applications 52

Lesson Thirteen The Basic Machining Techniques 56

Lesson Fourteen Engineering Tolerance 61

Lesson Fifteen Lathe 68

Lesson Sixteen Milling Machines 73

Lesson Seventeen Gear Manufacturing Methods 78

Lesson Eighteen Material Forming Processes 85

Lesson Nineteen Describing the Operation Panel 92

Lesson Twenty Safety and Maintenance for CNC Machine 103

Lesson Twenty-one Computer-Aided Process Planning 108

Lesson Twenty-two CAD/CAM/CNC 113

Lesson Twenty-three Flexible Manufacturing Systems 118

Lesson Twenty-four Computer Integrated Manufacturing System 122

Lesson Twenty-five Mechatronics 126

Lesson Twenty-six Programmable Logic Controllers 130

Lesson Twenty-seven Circuit and Motors 134

Lesson Twenty-eight Industrial Robots 142

Lesson Twenty-nine Components of a Robot System 148

Lesson Thirty Information Systems 153

PART B Reading Materials 160

Lesson One Classification of Metals 160

Lesson Two Brinell and Rockwell Hardness Test Method 164

Lesson Three Heat Treatments 168

Lesson Four Welding 172

Lesson Five Brakes 175

Lesson Six Principles of Engine Operation 179

Lesson Seven Selection of Mechanisms 183

Lesson Eight Fasteners and Springs 188

Lesson Nine Rolling Contact Bearings 193

Lesson Ten Computer-Aided Design Technology 197

Lesson Eleven Metal Cutting Operation System 201

Lesson Twelve Metal-Cutting Tools 205

Lesson Thirteen Grinding Machines 210

Lesson Fourteen Making Accurate Parts 213

Lesson Fifteen Introduction to Mould 216

Lesson Sixteen Why Learn Manual Programming 221

Lesson Seventeen CNC Versus Conventional Machining 224

Lesson Eighteen AC Servo Motor Maintenance 226

Lesson Nineteen N/C Machine Tool Elements 233

Lesson Twenty The Roles of Engineers in Manufacturing 239

Lesson Twenty-one Use of Sensors in Programmable Automation 243

Lesson Twenty-two Automatic Control Systems 248

Lesson Twenty-three Mechanization and Automation 251

Lesson Twenty-four Digital Camera 256

Lesson Twenty-five Artificial Intelligence 261

附录一 科技英语语法与翻译 265

一、科技英语翻译概述 265

二、科技文章的特点 268

三、词义的选择和引申 272

四、词量的增减 276

五、被动语态的译法 280

六、英汉语序的对比及翻译 283

七、长句的译法 288

八、科技应用文的译法 290

九、it和that在科技英语中的用法和译法 293

十、科技术语的翻译 297

附录二 应用文范例 300

一、招聘广告 300

二、英文求职信范例 301

三、简历 302

四、电子产品英文使用说明书范例 304

五、合同 307

附录三 常用机械类缩略语 310

主要参考文献 313