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Pressing Down: The Lever - Robotx Gerry Bailey
Pressing Down: The Lever - Robotx
Gerry Bailey
Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of worklift and lower, separate, and open.
32 pages, colour illustrations
| 介质类型 | 图书 Paperback Book (平装胶订图书) |
| 已发行 | 2014年2月28日 |
| ISBN13 | 9780778704225 |
| 出版商 | Crabtree Publishing Co,US |
| 页数 | 32 |
| 商品尺寸 | 203 × 255 × 4 mm · 146 g |
| 插画师 | Spoor, Mike |
