发表于2024-12-25
Machines pdf epub mobi txt 電子書 下載 2024
This lively and practical book looks at the enormous variety of machines and how they work. Fascinating and easy-to-do projects, such as making your own gears and belt drives, constructing a water-wheel and an Archimedean screw, or making your very own vacuum cleaner, will help you to understand the principles that are used to make machines work.
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Machines pdf epub mobi txt 電子書 下載 2024