PARTⅠ Introduction 1 Unit 1 Introduction to Engineering 3 BeforeClass Reading 3 Section A What Is Engineering? 3 InClass Reading 7 Section B Introduction to Electrical Engineering 7 Section C Introduction to Mechanical Engineering 14 Translation Skill Ⅰ 21 科技英语翻译学习的理论基础——以系统功能语言学为例 21 PART Ⅱ Electrical Engineering 23 Unit 2 Electricity 25 BeforeClass Reading 25 Section A Electricity in Early Days 25 InClass Reading 29 Section B Electrons and Electricity 29 Section C Electricity and Electronics 37 Translation Skill Ⅱ 44 科技英语翻译的原则和标准 44 Unit 3 Power Source 46 BeforeClass Reading 46 Section A Direct Current and Alternating Current 46 InClass Reading 49 Section B Electrical Power System 49 Section C Hydropower Technology Development 58 Translation Skill Ⅲ 64 科技英语的特点 64 Unit 4 Electromagnetism 68 BeforeClass Reading 68 Section A Introduction to Electromagnetism 68 InClass Reading 74 Section B Direct Current Generators and Motors 74 Section C Transformers 81 Translation Skill Ⅳ 85 词语的处理（1）—— 词义的引申 85 Unit 5 Electrical Engineering Applications 88 BeforeClass Reading 88 Section A Exploring Home Automation and Domotics 88 InClass Reading 93 Section B Everything Explained about Electric Cars:Basics of an EV 93 Section C How Does Quantum Levitation Work? 100 Translation Skill Ⅴ 105 词语的处理（2）—— 词性的转换 105 PART Ⅲ Mechanical Engineering 109 Unit 6 Basic Mechanisms and Elements 111 BeforeClass Reading 111 Section A Brief Introduction to Mechanism 111 InClass Reading 113 Section B Transmission 113 Section C Basic Machine Elements 121 Section D Joints and Linkages 132 Translation Skill Ⅵ 137 词语的处理（3）—— 增词与省略 137 Unit 7 Engineering Materials 140 BeforeClass Reading 140 Section A General Properties of Engineering Materials 140 InClass Reading 149 Section B Metallic Materials 149 Section C Nonmetallic Materials 157 Translation Skill Ⅶ 163 句法的处理（1）—— 被动语态的翻译 163 Unit 8 Metal Working Processes 166 BeforeClass Reading 166 Section A Heat Treatment 166 InClass Reading 171 Section B Forming 171 Section C Casting 179 Translation Skill Ⅷ 187 句法的处理（2）—— 否定句的翻译 187 Unit 9 Mechanical Engineering Applications 189 BeforeClass Reading 189 Section A Most Popular Industrial Robotic Applications for 2021  and Projections 189 InClass Reading 195 Section B What Is Nanotechnology? 195 Section C 3D Printing: History， Processes and Future 201 Translation Skill Ⅸ 207 句法的处理（3）—— 从句的翻译 207 PART Ⅳ Prospect 211 Unit 10 Prospect of Electrical and Mechanical Engineering 213 BeforeClass Reading 213 Section A Electrical and Electronic Engineering in the Future 213 InClass Reading 219 Section B The Future of Mechanical Engineering: A Vision and a Mission 219 Translation Skill Ⅹ 224 科技英语语篇的翻译 224 Glossary 227 参考文献 251 参考答案 252