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Explains how electricity is produced and transmitted, how to create electricity using an electrical wire and a magnet, how generators supply electricity for cities, and how electricity works in homes.
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| 主要作者: | |
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| 格式: | 圖書 |
| 語言: | 英语 |
| 出版: |
New York :
Crowell,
c1989.
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| 叢編: | Let's-read-and-find-out science book
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| 主題: | |
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