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レベル Level 16 (Non-Fiction)
![YL](./images/com/in_icon1.gif) 1.2 - 1.4
![LL](./images/com/in_icon2.gif) 2.5
![LLY](./images/com/in_icon2lly.gif) 3.7 - 3.9
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機械にもいろいろあるけれど、この本で紹介するのは単純機械。シンプルだけど役に立つ。
〔24.8×18.9cm 24ページ〕
Chapter 1 What is a Machine?
Chapter 2 The Lever
Chapter 3 the Inclined Plane
Chapter 4 The Wedge
Chapter 5 the Screw
Chapter 6 The Wheel and Axle
Chapter 7 The Pulley
Brasch, Nicolas
Cengage Learning
(C) Cengage Learning