描述
Introduces the principle of interlocking gears, as found in many toys, shows the many ways that it is used in everyday life, and provides instructions for simple projects
书籍详情
格式
平装书
页数
32 页
语言
英语
已发布
Jul 1, 1994
出版商
Gareth Stevens Pub
ISBN-10
0836811208
ISBN-13
9780836811209