描述
Text and illustrations describe the six simple machines upon which all others are based; these include the pulley, the lever, the wheel, the inclined plane, the wedge, and the screw
书籍详情
格式
平装书
页数
32 页
语言
英语
已发布
Jan 1, 1985
出版商
Troll Communications Llc
ISBN-10
0816701679
ISBN-13
9780816701674