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发表于2025-01-01
Experiments with Sound pdf epub mobi txt 電子書 下載 2025
When can you hear the Doppler effect? Which animal makes the loudest sound? How can curtains stop an echo? 'Do It Yourself' offers an exciting new approach to understanding and investigation. Each book helps you conduct your own experiments and activities
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Experiments with Sound pdf epub mobi txt 電子書 下載 2025