科技英语文选PDF电子书下载

CONTENTS 1

1．What Is Technical English? 1

2．Landing on the Moon 4

3．Digital Computers 7

4．Multimeter 10

5．What Are Magnets? 13

6．Electrical Current 17

7．The Three States of Matter 20

8．Heat Treatment 24

9．Amplifier Design 27

10．Sone New Units 30

11．Friction 34

12．Metals and Their Properties 37

13．Franklin and Electricity 41

14．Transformer 44

15．Transistor 47

16．What Is Electronics? 50

17．What Is Temperaturc? 53

18．Temperature and Heat 56

19．Correct Choice of Fuse 59

20．The Nature of Magnetic Materials 64

21．Conductors 67

22．The Nature of Plastics 70

23．Corrosion 73

24．How to Transform Energy into Work 76

25．Ohm s Law 80

26．Engineering Materials 84

27．Work 88

28．Boiling Point and Freezing Point 92

29．Expansion and Contraction 96

30．How Solids Transmit Sound 100

Vocabulary 104