Get to Know Pulleys 在线电子书 图书标签:
发表于2024-08-31
Get to Know Pulleys 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024
This title is suitable for children of ages 7 to 8 years. Pulleys help make up some of the most complicated machinery, from car engines to cranes. See how pulleys lift and move heavy things, how pulleys work together, and the different kinds of pulleys. Kids get to use their own pulleys in the fun with pulleys section.
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Get to Know Pulleys 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024