PART�� 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 �� 21 �Ƽ�Ӣ�Z���g�W������Փ���A������ϵ�y�����Z�ԌW���� 21PART �� 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 �� 44 �Ƽ�Ӣ�Z���g��ԭ�t�͘˜� 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 �� 64 �Ƽ�Ӣ�Z�����c 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 �� 85 �~�Z��̎����1������ �~�x������ 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 �� 105 �~�Z��̎����2������ �~�Ե��D�Q 105PART �� 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 �� 137 �~�Z��̎����3������ ���~�cʡ�� 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 �� 163 �䷨��̎����1������ �����Z�B�ķ��g 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 �� 187 �䷨��̎����2������ �񶨾�ķ��g 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 �� 207 �䷨��̎����3������ �ľ�ķ��g 207PART �� 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 �� 224 �Ƽ�Ӣ�Z�Zƪ�ķ��g 224Glossary 227�����īI 251������ 252